100+ datasets found
  1. U

    USGS National Boundary Dataset (NBD) Downloadable Data Collection

    • data.usgs.gov
    • catalog.data.gov
    + more versions
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    U.S. Geological Survey, National Geospatial Technical Operations Center, USGS National Boundary Dataset (NBD) Downloadable Data Collection [Dataset]. https://data.usgs.gov/datacatalog/data/USGS:6dcde538-1684-48a0-a8d6-cb671ca0a43e
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    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Authors
    U.S. Geological Survey, National Geospatial Technical Operations Center
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    The USGS Governmental Unit Boundaries dataset from The National Map (TNM) represents major civil areas for the Nation, including States or Territories, counties (or equivalents), Federal and Native American areas, congressional districts, minor civil divisions, incorporated places (such as cities and towns), and unincorporated places. Boundaries data are useful for understanding the extent of jurisdictional or administrative areas for a wide range of applications, including mapping or managing resources, and responding to natural disasters. Boundaries data also include extents of forest, grassland, park, wilderness, wildlife, and other reserve areas useful for recreational activities, such as hiking and backpacking. Boundaries data are acquired from a variety of government sources. The data represents the source data with minimal editing or review by USGS. Please refer to the feature-level metadata ...

  2. a

    Map Image Layer - Administrative Boundaries

    • hub.arcgis.com
    Updated Jan 12, 2022
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    Minnesota Pollution Control Agency (2022). Map Image Layer - Administrative Boundaries [Dataset]. https://hub.arcgis.com/maps/c671252c058d46ad9173e0434382dc61
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    Dataset updated
    Jan 12, 2022
    Dataset authored and provided by
    Minnesota Pollution Control Agency
    Area covered
    Description

    The "Map Imager Layer - Administrative Boundaries" is a Map Image Layer of Administrative Boundaries. It has been designed specifically for use in ArcGIS Online (and will not directly work in ArcMap or ArcPro). This data has been modified from the original source data to serve a specific business purpose. This data is for cartographic purposes only.The Administrative Boundaries Data Group contains the following layers: Populated Places (USGS)US Census Urbanized Areas and Urban Clusters (USCB)US Census Minor Civil Divisions (USCB)PLSS Townships (MnDNR, MnGeo)Counties (USCB)American Indian, Alaska Native, Native Hawaiian (AIANNH) Areas (USCB)States (USCB)Countries (MPCA)These datasets have not been optimized for fast display (but rather they maintain their original shape/precision), therefore it is recommend that filtering is used to show only the features of interest. For more information about using filters please see "Work with map layers: Apply Filters": https://doc.arcgis.com/en/arcgis-online/create-maps/apply-filters.htmFor additional information about the Administrative Boundary Dataset please see:United States Census Bureau TIGER/Line Shapefiles and TIGER/Line Files Technical Documentation: https://www.census.gov/programs-surveys/geography/technical-documentation/complete-technical-documentation/tiger-geo-line.htmlUnited States Census Bureau Census Mapping Files: https://www.census.gov/geographies/mapping-files.htmlUnited States Census Bureau TIGER/Line Shapefiles: https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html and https://www.census.gov/cgi-bin/geo/shapefiles/index.php

  3. c

    Northeastern States State Boundary Set

    • deepmaps.ct.gov
    • gimi9.com
    • +2more
    Updated Oct 30, 2019
    + more versions
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    Department of Energy & Environmental Protection (2019). Northeastern States State Boundary Set [Dataset]. https://deepmaps.ct.gov/maps/73de6773a9d64f77a1fac65bbaaf4323
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    Dataset updated
    Oct 30, 2019
    Dataset authored and provided by
    Department of Energy & Environmental Protection
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Area covered
    Description

    Northeastern United States State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label states on a map. These data are derived from Northeastern United States Political Boundary Master layer. This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)

  4. d

    Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data...

    • catalog.data.gov
    • data.usgs.gov
    • +1more
    Updated Nov 26, 2025
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    U.S. Geological Survey (2025). Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection [Dataset]. https://catalog.data.gov/dataset/watershed-boundary-dataset-wbd-usgs-national-map-downloadable-data-collection
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    Dataset updated
    Nov 26, 2025
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Description

    The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit for the entire United States. Some areas may also include additional subdivisions representing the 14- and 16-digit hydrologic unit (HU). At a minimum, the HUs are delineated at 1:24,000-scale in the conterminous United States, 1:25,000-scale in Hawaii, Pacific basin and the Caribbean, and 1:63,360-scale in Alaska, meeting the National Map Accuracy Standards (NMAS). Higher resolution boundaries are being developed where partners and data exist and will be incorporated back into the WBD. WBD data are delivered as a dataset of polygons and corresponding lines that define the boundary of the polygon. WBD polygon attributes include hydrologic unit codes (HUC), size (in the form of acres and square kilometers), name, downstream hydrologic unit code, type of watershed, non-contributing areas, and flow modifications. The HUC describes where the unit is in the country and the level of the unit. WBD line attributes contain the highest level of hydrologic unit for each boundary, line source information and flow modifications. For additional information on NHD, go to https://www.usgs.gov/national-hydrography.

  5. OS Boundary-Line (Mature Support)

    • covid19.esriuk.com
    • hub.arcgis.com
    Updated Apr 18, 2015
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    Esri UK (2015). OS Boundary-Line (Mature Support) [Dataset]. https://covid19.esriuk.com/maps/5b60fac33976436ab900e05eb1a33216
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    Dataset updated
    Apr 18, 2015
    Dataset provided by
    Esrihttp://esri.com/
    Authors
    Esri UK
    Area covered
    Description

    Important Note: This item is in mature support as of November 2021 and will be retired. A NEW VERSION of this item is available for your use. We recommend updating your maps and apps to use the new version.Boundary-Line is a specialist 1:10 000 scale boundaries dataset. It contains all levels of electoral and administrative boundaries, from district, wards and civil parishes (or communities) up to parliamentary, assembly and European constituencies. The currency of this data is 10/2019.

    The coverage of the map service is GB. The map projection is British National Grid. The service is appropriate for viewing down to a scale of approximately 1:20,000. Updated by Esri UK: 22/01/2020To download this dataset use the link here.Ever wondered how Boundary-Line data could be used in analysis? Take a look at our police or supermarket story map.

  6. USGS Governmental Unit Boundaries Overlay Map Service from The National Map

    • datasets.ai
    • catalogue.arctic-sdi.org
    • +2more
    0, 23, 33, 51, 52
    Updated Nov 10, 2023
    + more versions
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    U.S. Geological Survey, Department of the Interior (2023). USGS Governmental Unit Boundaries Overlay Map Service from The National Map [Dataset]. https://datasets.ai/datasets/usgs-governmental-unit-boundaries-overlay-map-service-from-the-national-map
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    0, 23, 51, 52, 33Available download formats
    Dataset updated
    Nov 10, 2023
    Dataset provided by
    United States Department of the Interiorhttp://www.doi.gov/
    United States Geological Surveyhttp://www.usgs.gov/
    Authors
    U.S. Geological Survey, Department of the Interior
    Description

    The USGS Governmental Unit Boundaries service from The National Map (TNM) represents major civil areas for the Nation, including States or Territories, counties (or equivalents), Federal and Native American areas, congressional districts, minor civil divisions, incorporated places (such as cities and towns), and unincorporated places. Boundaries data are useful for understanding the extent of jurisdictional or administrative areas for a wide range of applications, including mapping or managing resources, and responding to natural disasters. Boundaries data also include extents of forest, grassland, park, wilderness, wildlife, and other reserve areas useful for recreational activities, such as hiking and backpacking. Boundaries data are acquired from a variety of government sources. The data represents the source data with minimal editing or review by USGS. Please refer to the feature-level metadata for information on the data source. The National Map boundaries data is commonly combined with other data themes, such as elevation, hydrography, structures, and transportation, to produce general reference base maps. The National Map viewer allows free downloads of public domain boundaries data in either Esri File Geodatabase or Shapefile formats. For additional information on the boundaries data model, go to https://nationalmap.gov/boundaries.html.

  7. India Map - State, District Boundaries

    • kaggle.com
    Updated Aug 30, 2024
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    Tapendu Karmakar (2024). India Map - State, District Boundaries [Dataset]. https://www.kaggle.com/datasets/iamtapendu/india-map-state-district-boundaries
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    CroissantCroissant is a format for machine-learning datasets. Learn more about this at mlcommons.org/croissant.
    Dataset updated
    Aug 30, 2024
    Dataset provided by
    Kaggle
    Authors
    Tapendu Karmakar
    License

    Apache License, v2.0https://www.apache.org/licenses/LICENSE-2.0
    License information was derived automatically

    Area covered
    India
    Description

    Shapefile Description:

    The shapefile of India with district-level details is a geospatial dataset that provides detailed geographic boundaries and attributes of districts across the country.

    Key Features:

    • Geographic Boundaries: Contains precise polygon boundaries outlining each district within India's states, allowing for detailed mapping and spatial analysis.
    • District-Level Details: Includes attributes such as district names, state affiliations, and potentially other demographic or administrative information.
    • Projection and Coordinate System: Typically includes information on the geographic projection and coordinate system used, ensuring accurate mapping and integration with other spatial data.
    • Usage: Useful for spatial analysis, visualization, and geographic information system (GIS) applications related to administrative divisions, resource management, and planning.

    Applications:

    • Mapping and Visualization: Enables the creation of detailed maps showing district boundaries and distribution across India.
    • Spatial Analysis: Facilitates analysis of data at the district level, including demographic studies, resource allocation, and policy planning.
    • Integration with Other Data: Can be combined with various datasets (e.g., crop production, economic indicators) for comprehensive analysis and reporting.
  8. w

    Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data...

    • data.wu.ac.at
    amazon cloud +5
    Updated Aug 1, 2018
    + more versions
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    U.S. Geological Survey, Department of the Interior (2018). Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection [Dataset]. https://data.wu.ac.at/schema/data_gov/NGZjZTlmMGQtMzM1NS00MmMzLWFiMGEtYTlkNzZmNjc0OTI3
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    html, wms, amazon cloud, esri rest, ftp, wafAvailable download formats
    Dataset updated
    Aug 1, 2018
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Area covered
    4322db673e10f4dfc2be088f193d73e51b65ce8a
    Description

    The Watershed Boundary Dataset (WBD) from The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landscape characteristics. The drainage areas are nested within each other so that a large drainage area, such as the Upper Mississippi River, will be composed of multiple smaller drainage areas, such as the Wisconsin River. Each of these smaller areas can further be subdivided into smaller and smaller drainage areas. The WBD uses six different levels in this hierarchy, with the smallest averaging about 30,000 acres. The WBD is made up of polygons nested into six levels of data respectively defined by Regions, Subregions, Basins, Subbasins, Watersheds, and Subwatersheds. For additional information on the WBD, go to https://nhd.usgs.gov/wbd.html. The USGS National Hydrography Dataset (NHD) service is a companion dataset to the WBD. The NHD is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating water and transported material flow allows users to trace movement in upstream and downstream directions. In addition to this geographic information, the dataset contains metadata that supports the exchange of future updates and improvements to the data. The NHD is available nationwide in two seamless datasets, one based on 1:24,000-scale maps and referred to as high resolution NHD, and the other based on 1:100,000-scale maps and referred to as medium resolution NHD. Additional selected areas in the United States are available based on larger scales, such as 1:5,000-scale or greater, and referred to as local resolution NHD. For more information on the NHD, go to https://nhd.usgs.gov/index.html. Hydrography data from The National Map supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance, and stewardship. Hydrography data is commonly combined with other data themes, such as boundaries, elevation, structures, and transportation, to produce general reference base maps. The National Map viewer allows free downloads of public domain WBD and NHD data in either Esri File or Personal Geodatabase, or Shapefile formats.

  9. Z

    U.S. ZIP Code Boundary Data

    • zip-codes.com
    Updated Nov 1, 2025
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    Datasheer, L.L.C. (2025). U.S. ZIP Code Boundary Data [Dataset]. https://www.zip-codes.com/zip-code-map-boundary-data.asp
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    txt, kml, application/geo+json, application/x-shapefile, csv, application/sqlAvailable download formats
    Dataset updated
    Nov 1, 2025
    Dataset provided by
    Datasheer, L.L.C.
    License

    https://www.zip-codes.com/tos-database.asphttps://www.zip-codes.com/tos-database.asp

    Time period covered
    2003 - Present
    Area covered
    United States of America,
    Variables measured
    State, ZIP Code, County FIPS, County Name, PO Box Count, Release Version, Primary City Name, 3-Digit ZIP Prefix, Business Delivery Count, Boundary Polygon Geometry, and 5 more
    Description

    High-precision polygonal and centroid-based geographic representations of all U.S. postal ZIP Codes for mapping, analytics, and data enrichment. Built from USPS carrier route data with quarterly updates. Includes boundary polygons (~41,000 deliverable ZIP Codes) and centroids (~33,000 total ZIP Codes including PO Box and Unique types). Features continuous nationwide coverage with filler ZIPs, delivery statistics (residential, multifamily, single-family, business counts), and support for 8 file formats: Shapefile, GeoJSON, SQL Server, MySQL, PostgreSQL, WKT, CSV, and KML. WGS84 coordinate system with 6 decimal precision. Compatible with all major GIS platforms including ArcGIS, QGIS, MapInfo, Tableau, Power BI, and web mapping libraries. All purchases include quarterly updates, unlimited downloads, FTP access, and free technical support.

  10. a

    Connecticut and Vicinity State Boundary Set

    • ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com
    • data.ct.gov
    • +3more
    Updated Oct 30, 2019
    + more versions
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    Department of Energy & Environmental Protection (2019). Connecticut and Vicinity State Boundary Set [Dataset]. https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/maps/395edd2ef0504801954ab600548411ee
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    Dataset updated
    Oct 30, 2019
    Dataset authored and provided by
    Department of Energy & Environmental Protection
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Area covered
    Description

    Connecticut and Vicinity State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label states on a map. These data are derived from Northeastern United States Political Boundary Master layer. This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)

  11. c

    City and County Boundary Changes by Roll Year

    • gis.data.ca.gov
    • hub.arcgis.com
    Updated Jul 1, 2022
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    California Department of Tax and Fee Administration (2022). City and County Boundary Changes by Roll Year [Dataset]. https://gis.data.ca.gov/maps/cd465bc4bded40b399a3035e9888413c
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    Dataset updated
    Jul 1, 2022
    Dataset authored and provided by
    California Department of Tax and Fee Administration
    License

    MIT Licensehttps://opensource.org/licenses/MIT
    License information was derived automatically

    Area covered
    Description

    This map is a compilation of the final set of city and county boundary changes filed with the California State Board of Equalization in accordance with Government Code 54900 for each assessment roll year beginning with the 2021 roll year. Boundary corrections are included in the dataset according to information provided by the city, county, and/or LAFCO. These corrections may or may not have been corrected in the Board of Equalization's records. Each layer is considered FINAL as of June in the year noted by the layer name. The boundaries from 2021 through 2025 are based on the California State Board of Equalization's tax rate area maps and may not align with other sources. For the latest data, please view the "City and County Boundary Line Changes" map.As of April 1, 2024, the maintenance of this map is provided by the California Department of Tax and Fee Administration (CDTFA) for sales and use tax purposes.

  12. CA Geographic Boundaries

    • data.ca.gov
    • s.cnmilf.com
    • +1more
    shp
    Updated May 3, 2024
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    California Department of Technology (2024). CA Geographic Boundaries [Dataset]. https://data.ca.gov/dataset/ca-geographic-boundaries
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    shp(10153125), shp(136046), shp(2597712)Available download formats
    Dataset updated
    May 3, 2024
    Dataset authored and provided by
    California Department of Technologyhttp://cdt.ca.gov/
    Description

    This dataset contains shapefile boundaries for CA State, counties and places from the US Census Bureau's 2023 MAF/TIGER database. Current geography in the 2023 TIGER/Line Shapefiles generally reflects the boundaries of governmental units in effect as of January 1, 2023.

  13. d

    River basin boundary map

    • data.gov.tw
    Updated Nov 5, 2025
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    Water Resources Agency,Ministry of Economic Affairs (2025). River basin boundary map [Dataset]. https://data.gov.tw/en/datasets/9823
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    Dataset updated
    Nov 5, 2025
    Dataset authored and provided by
    Water Resources Agency,Ministry of Economic Affairs
    License

    https://data.gov.tw/licensehttps://data.gov.tw/license

    Description

    The Water Resources Agency and its affiliated agencies provide relevant range information for various river basins for use by government agencies and private organizations, groups, or academic units commissioned by government agencies for specific projects. This dataset is linked to a Keyhole Markup Language (KML) file list, a markup language based on the XML (eXtensible Markup Language) syntax standard, used to express geographic annotations. KML files, written in the KML language, use the XML file format and are applied in Google Earth-related software for displaying geographic data (including points, lines, polygons, models, etc.). Many GIS systems also use this format for exchanging geographic data. The KML data in this dataset uses the UTF-8 encoding.

  14. a

    USGS Watershed Boundary Dataset (WBD)

    • hub.arcgis.com
    • anrgeodata.vermont.gov
    • +1more
    Updated Feb 2, 2018
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    CA Governor's Office of Emergency Services (2018). USGS Watershed Boundary Dataset (WBD) [Dataset]. https://hub.arcgis.com/maps/70814bc6a3cb48668735688d6023f803
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    Dataset updated
    Feb 2, 2018
    Dataset authored and provided by
    CA Governor's Office of Emergency Services
    Area covered
    Description

    This map service contains the most current version of the USGS Watershed Boundary Dataset (WBD) from The National Map (TNM). The WBD defines the perimeter of drainage areas formed by the terrain and other landscape characteristics. These drainage areas or Hydrologic Unit (HU) polygon boundaries are available for the United States, Puerto Rico, and the U.S. Virgin Islands. The drainage areas are nested within each other so that a large drainage area, such as the Upper Mississippi River, will be composed of multiple smaller drainage areas, such as the Wisconsin River. Each of these smaller areas can further be subdivided into smaller and smaller drainage areas. The WBD uses six different levels in this hierarchy, with the smallest averaging about 30,000 acres. The WBD is made up of polygons nested into six levels of data respectively defined by Regions, Subregions, Basins, Subbasins, Watersheds, and Subwatersheds.The data is a seamless National representation of HU boundaries from 2 to 14 digits compiled from U.S. Geological Survey (USGS) National Hydrography Dataset (NHD) and U.S. Department of Agriculture (USDA) National Resources Conservation Service (NRCS) Watershed Boundary Dataset (WBD) sources. Purpose: This data is intended primarily for geographic display and analysis of regional and national data, and can also be used for illustration purposes at intermediate or small scales (1:250,000 to 1:2,000,000). For additional information on the WBD, go to https://nhd.usgs.gov/wbd.html.

  15. i

    HUC2 Boundaries

    • indianamap.org
    • arc-gis-hub-home-arcgishub.hub.arcgis.com
    • +1more
    Updated Feb 2, 2024
    + more versions
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    IndianaMap (2024). HUC2 Boundaries [Dataset]. https://www.indianamap.org/datasets/huc2-boundaries
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    Dataset updated
    Feb 2, 2024
    Dataset authored and provided by
    IndianaMap
    Area covered
    Description

    The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" “Standard” (http://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level) for the entire United States. Some areas may also include additional subdivisions representing the 14- and 16-digit hydrologic unit (HU). At a minimum, the HUs are delineated at 1:24,000-scale in the conterminous United States, 1:25,000-scale in Hawaii, Pacific basin and the Caribbean, and 1:63,360-scale in Alaska, meeting the National Map Accuracy Standards (NMAS). Higher resolution boundaries are being developed where partners and data exist and will be incorporated back into the WBD. WBD data are delivered as a dataset of polygons and corresponding lines that define the boundary of the polygon. WBD polygon attributes include hydrologic unit codes (HUC), size (in the form of acres and square kilometers), name, downstream hydrologic unit code, type of watershed, non-contributing areas, and flow modifications. The HUC describes where the unit is in the country and the level of the unit. WBD line attributes contain the highest level of hydrologic unit for each boundary, line source information and flow modifications.

  16. n

    Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National...

    • earthdata.nasa.gov
    • dataverse.harvard.edu
    • +5more
    Updated Sep 26, 2011
    + more versions
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    ESDIS (2011). Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National Administrative Boundaries [Dataset]. http://doi.org/10.7927/H44B2Z74
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    Dataset updated
    Sep 26, 2011
    Dataset authored and provided by
    ESDIS
    Description

    The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National Administrative Boundaries are derived from the land area grid to show the outlines of pixels (cells) that contain administrative Units in GRUMPv1 on a per-country/territory basis. They are derived from the pixels as polygons and thus have rectilinear boundaries at a large scale. The polygons that outline the countries and territories are not official representations; rather they represent the area covered by the statistical data as provided. This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI), The World Bank, and Centro Internacional de Agricultura Tropical (CIAT).

  17. d

    Digital map of aquifer boundary for the High Plains aquifer in parts of...

    • catalog.data.gov
    • data.usgs.gov
    • +3more
    Updated Feb 1, 2001
    + more versions
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    U.S. Geological Survey (2001). Digital map of aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming [Dataset]. https://catalog.data.gov/dataset/digital-map-of-aquifer-boundary-for-the-high-plains-aquifer-in-parts-of-colorado-kansas-ne
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    Dataset updated
    Feb 1, 2001
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Colorado, Ogallala Aquifer, Oklahoma, Wyoming, New Mexico
    Description

    This digital data set consists of aquifer boundaries for the High Plains aquifer in the central United States. The High Plains aquifer extends from south of 32 degrees to almost 44 degrees north latitude and from 96 degrees 30 minutes to 106 degrees west longitude. The outcrop area covers 174,000 square miles and is present in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set was compiled from a digital coverage that was created for publication of paper maps in McGrath and Dugan (1993, Water-level changes in the High Plains aquifer -- predevelopment to 1991: U.S. Geological Survey Water-Resources Investigations Report 93-4088, 53 p.) The data are not intended for use at scales larger than 1:1,000,000.

  18. d

    Village boundary map (TWD97_123 zone)

    • data.gov.tw
    shp
    Updated Jan 22, 2013
    + more versions
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    Ministry of the Interior Land Surveying and Mapping Center (2013). Village boundary map (TWD97_123 zone) [Dataset]. https://data.gov.tw/en/datasets/5968
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    shpAvailable download formats
    Dataset updated
    Jan 22, 2013
    Dataset authored and provided by
    Ministry of the Interior Land Surveying and Mapping Center
    License

    https://data.gov.tw/licensehttps://data.gov.tw/license

    Description

    Village (Neighborhood) Boundaries across the Nation

  19. c

    California City Boundaries and Identifiers

    • gis.data.ca.gov
    • catalog.data.gov
    Updated Sep 16, 2024
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    California Department of Technology (2024). California City Boundaries and Identifiers [Dataset]. https://gis.data.ca.gov/items/8cd5d2038c5547ba911eea7bec48e28b
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    Dataset updated
    Sep 16, 2024
    Dataset authored and provided by
    California Department of Technology
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Area covered
    Description

    Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. For deployment status of new services beginning in February 2025, see https://gis.data.ca.gov/pages/city-and-county-boundary-data-status. Additional roadmap and status links at the bottom of this metadata.This dataset is regularly updated as the source data from CDTFA is updated, as often as many times a month. If you require unchanging point-in-time data, export a copy for your own use rather than using the service directly in your applications. PurposeCity boundaries along with third party identifiers used to join in external data. Boundaries are from the California Department of Tax and Fee Administration (CDTFA). These boundaries are the best available statewide data source in that CDTFA receives changes in incorporation and boundary lines from the Board of Equalization, who receives them from local jurisdictions for tax purposes. Boundary accuracy is not guaranteed, and though CDTFA works to align boundaries based on historical records and local changes, errors will exist. If you require a legal assessment of boundary location, contact a licensed surveyor.This dataset joins in multiple attributes and identifiers from the US Census Bureau and Board on Geographic Names to facilitate adding additional third party data sources. In addition, we attach attributes of our own to ease and reduce common processing needs and questions. Finally, coastal buffers are separated into separate polygons, leaving the land-based portions of jurisdictions and coastal buffers in adjacent polygons. This feature layer is for public use. Related LayersThis dataset is part of a grouping of many datasets:Cities: Only the city boundaries and attributes, without any unincorporated areasWith Coastal BuffersWithout Coastal Buffers (this dataset)Counties: Full county boundaries and attributes, including all cities within as a single polygonWith Coastal BuffersWithout Coastal BuffersCities and Full Counties: A merge of the other two layers, so polygons overlap within city boundaries. Some customers require this behavior, so we provide it as a separate service.With Coastal BuffersWithout Coastal BuffersCity and County AbbreviationsUnincorporated Areas (Coming Soon)Census Designated PlacesCartographic CoastlinePolygonLine source (Coming Soon)State BoundaryWith Bay CutsWithout Bay Cuts Working with Coastal Buffers The dataset you are currently viewing excludes the coastal buffers for cities and counties that have them in the source data from CDTFA. In the versions where they are included, they remain as a second polygon on cities or counties that have them, with all the same identifiers, and a value in the COASTAL field indicating if it"s an ocean or a bay buffer. If you wish to have a single polygon per jurisdiction that includes the coastal buffers, you can run a Dissolve on the version that has the coastal buffers on all the fields except OFFSHORE and AREA_SQMI to get a version with the correct identifiers. Point of ContactCalifornia Department of Technology, Office of Digital Services, odsdataservices@state.ca.gov Field and Abbreviation DefinitionsCDTFA_CITY: CDTFA incorporated city nameCDTFA_COUNTY: CDTFA county name. For counties, this will be the name of the polygon itself. For cities, it is the name of the county the city polygon is within.CDTFA_COPRI: county number followed by the 3-digit city primary number used in the Board of Equalization"s 6-digit tax rate area numbering system. The boundary data originate with CDTFA's teams managing tax rate information, so this field is preserved and flows into this dataset.CENSUS_GEOID: numeric geographic identifiers from the US Census BureauCENSUS_PLACE_TYPE: City, County, or Town, stripped off the census name for identification purpose.GNIS_PLACE_NAME: Board on Geographic Names authorized nomenclature for area names published in the Geographic Name Information SystemGNIS_ID: The numeric identifier from the Board on Geographic Names that can be used to join these boundaries to other datasets utilizing this identifier.CDT_CITY_ABBR: Abbreviations of incorporated area names - originally derived from CalTrans Division of Local Assistance and now managed by CDT. Abbreviations are 4 characters. Not present in the county-specific layers.CDT_COUNTY_ABBR: Abbreviations of county names - originally derived from CalTrans Division of Local Assistance and now managed by CDT. Abbreviations are 3 characters.CDT_NAME_SHORT: The name of the jurisdiction (city or county) with the word "City" or "County" stripped off the end. Some changes may come to how we process this value to make it more consistent.AREA_SQMI: The area of the administrative unit (city or county) in square miles, calculated in EPSG 3310 California Teale Albers.OFFSHORE: Indicates if the polygon is a coastal buffer. Null for land polygons. Additional values include "ocean" and "bay".PRIMARY_DOMAIN: Currently empty/null for all records. Placeholder field for official URL of the city or countyCENSUS_POPULATION: Currently null for all records. In the future, it will include the most recent US Census population estimate for the jurisdiction.GlobalID: While all of the layers we provide in this dataset include a GlobalID field with unique values, we do not recommend you make any use of it. The GlobalID field exists to support offline sync, but is not persistent, so data keyed to it will be orphaned at our next update. Use one of the other persistent identifiers, such as GNIS_ID or GEOID instead. Boundary AccuracyCounty boundaries were originally derived from a 1:24,000 accuracy dataset, with improvements made in some places to boundary alignments based on research into historical records and boundary changes as CDTFA learns of them. City boundary data are derived from pre-GIS tax maps, digitized at BOE and CDTFA, with adjustments made directly in GIS for new annexations, detachments, and corrections.Boundary accuracy within the dataset varies. While CDTFA strives to correctly include or exclude parcels from jurisdictions for accurate tax assessment, this dataset does not guarantee that a parcel is placed in the correct jurisdiction. When a parcel is in the correct jurisdiction, this dataset cannot guarantee accurate placement of boundary lines within or between parcels or rights of way. This dataset also provides no information on parcel boundaries. For exact jurisdictional or parcel boundary locations, please consult the county assessor's office and a licensed surveyor. CDTFA's data is used as the best available source because BOE and CDTFA receive information about changes in jurisdictions which otherwise need to be collected independently by an agency or company to compile into usable map boundaries. CDTFA maintains the best available statewide boundary information. CDTFA's source data notes the following about accuracy: City boundary changes and county boundary line adjustments filed with the Board of Equalization per Government Code 54900. This GIS layer contains the boundaries of the unincorporated county and incorporated cities within the state of California. The initial dataset was created in March of 2015 and was based on the State Board of Equalization tax rate area boundaries. As of April 1, 2024, the maintenance of this dataset is provided by the California Department of Tax and Fee Administration for the purpose of determining sales and use tax rates. The boundaries are continuously being revised to align with aerial imagery when areas of conflict are discovered between the original boundary provided by the California State Board of Equalization and the boundary made publicly available by local, state, and federal government. Some differences may occur between actual recorded boundaries and the boundaries used for sales and use tax purposes. The boundaries in this map are representations of taxing jurisdictions for the purpose of determining sales and use tax rates and should not be used to determine precise city or county boundary line locations. Boundary ProcessingThese data make a structural change from the source data. While the full boundaries provided by CDTFA include coastal buffers of varying sizes, many users need boundaries to end at the shoreline of the ocean or a bay. As a result, after examining existing city and county boundary layers, these datasets provide a coastline cut generally along the ocean facing coastline. For county boundaries in northern California, the cut runs near the Golden Gate Bridge, while for cities, we cut along the bay shoreline and into the edge of the Delta at the boundaries of Solano, Contra Costa, and Sacramento counties. In the services linked above, the versions that include the coastal buffers contain them as a second (or third) polygon for the city or county, with the value in the COASTAL field set to whether it"s a bay or ocean polygon. These can be processed back into a single polygon by dissolving on all the fields you wish to keep, since the attributes, other than the COASTAL field and geometry attributes (like areas) remain the same between the polygons for this purpose. SliversIn cases where a city or county"s boundary ends near a coastline, our coastline data may cross back and forth many times while roughly paralleling the jurisdiction"s boundary, resulting in many polygon slivers. We post-process the data to remove these slivers using a city/county boundary priority algorithm. That is, when the data run parallel to each other, we discard the coastline cut and keep the CDTFA-provided boundary, even if it extends into the ocean a small amount. This processing supports consistent boundaries for Fort Bragg, Point Arena, San Francisco, Pacifica, Half Moon Bay, and Capitola, in addition to others. More information on this algorithm will be provided soon. Coastline CaveatsSome cities have buffers extending into water bodies

  20. d

    GIS Map Panel Boundaries

    • catalog.data.gov
    • data.bloomington.in.gov
    Updated Dec 22, 2023
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    data.bloomington.in.gov (2023). GIS Map Panel Boundaries [Dataset]. https://catalog.data.gov/dataset/gis-map-panel-boundaries-ad787
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    Dataset updated
    Dec 22, 2023
    Dataset provided by
    data.bloomington.in.gov
    Description

    This map data layer represents the GIS Map Panel Boundaries for the City of Bloomington, Indiana. The GIS Map Panel Boundaries data layer was created as a reference grid for the GIS map data. The grid tiles are 3000' by 2000' and cover a total of 86.3 square miles of central Monroe County in Indiana. The panel tiles are located arbitrary to any geographic features

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U.S. Geological Survey, National Geospatial Technical Operations Center, USGS National Boundary Dataset (NBD) Downloadable Data Collection [Dataset]. https://data.usgs.gov/datacatalog/data/USGS:6dcde538-1684-48a0-a8d6-cb671ca0a43e

USGS National Boundary Dataset (NBD) Downloadable Data Collection

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7 scholarly articles cite this dataset (View in Google Scholar)
Dataset provided by
United States Geological Surveyhttp://www.usgs.gov/
Authors
U.S. Geological Survey, National Geospatial Technical Operations Center
License

U.S. Government Workshttps://www.usa.gov/government-works
License information was derived automatically

Description

The USGS Governmental Unit Boundaries dataset from The National Map (TNM) represents major civil areas for the Nation, including States or Territories, counties (or equivalents), Federal and Native American areas, congressional districts, minor civil divisions, incorporated places (such as cities and towns), and unincorporated places. Boundaries data are useful for understanding the extent of jurisdictional or administrative areas for a wide range of applications, including mapping or managing resources, and responding to natural disasters. Boundaries data also include extents of forest, grassland, park, wilderness, wildlife, and other reserve areas useful for recreational activities, such as hiking and backpacking. Boundaries data are acquired from a variety of government sources. The data represents the source data with minimal editing or review by USGS. Please refer to the feature-level metadata ...

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