88 datasets found
  1. m

    MassGIS Data: USGS Topographic Map Quadrangle Template

    • mass.gov
    Updated Mar 15, 1989
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    MassGIS (Bureau of Geographic Information) (1989). MassGIS Data: USGS Topographic Map Quadrangle Template [Dataset]. https://www.mass.gov/info-details/massgis-data-usgs-topographic-map-quadrangle-template
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    Dataset updated
    Mar 15, 1989
    Dataset authored and provided by
    MassGIS (Bureau of Geographic Information)
    Area covered
    Massachusetts
    Description

    March 1989

  2. d

    Sea floor maps showing topography, sun-illuminated topographic imagery, and...

    • catalog.data.gov
    • data.usgs.gov
    • +2more
    Updated Jul 6, 2024
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    U.S. Geological Survey (2024). Sea floor maps showing topography, sun-illuminated topographic imagery, and backscatter intensity of the Stellwagen Bank National Marine Sanctuary Region off Boston, Massachusetts [Dataset]. https://catalog.data.gov/dataset/sea-floor-maps-showing-topography-sun-illuminated-topographic-imagery-and-backscatter-inte
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    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Massachusetts, Boston, Gerry E. Studds/Stellwagen Bank National Marine Sanctuary
    Description

    This data set contains the sea floor topographic contours, sun-illuminated topographic imagery, and backscatter intensity generated from a multibeam sonar survey of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts, an area of approximately 1100 square nautical miles. The Stellwagen Bank NMS Mapping Project is designed to provide detailed maps of the Stellwagen Bank region's environments and habitats and the first complete multibeam topographic and sea floor characterization maps of a significant region of the shallow EEZ. Data were collected on four cruises over a two year period from the fall of 1994 to the fall of 1996. The surveys were conducted aboard the Candian Hydrographic Service vessel Frederick G. Creed, a SWATH (Small Waterplane Twin Hull) ship that surveys at speeds of 16 knots. The multibeam data were collected utilizing a Simrad Subsea EM 1000 Multibeam Echo Sounder (95 kHz) that is permanently installed in the hull of the Creed.

  3. a

    USGS Topo Quad Maps Index (Feature Service)

    • geo-massdot.opendata.arcgis.com
    • gis.data.mass.gov
    • +1more
    Updated Feb 26, 2024
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    MassGIS - Bureau of Geographic Information (2024). USGS Topo Quad Maps Index (Feature Service) [Dataset]. https://geo-massdot.opendata.arcgis.com/datasets/massgis::usgs-topo-quad-maps-index-feature-service
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    Dataset updated
    Feb 26, 2024
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    The quadrangle template datalayer contains the boundaries of the 189 1:25,000 USGS 7.5-minute topographic map sheets that cover Massachusetts.See full metadata.

  4. m

    USGS Historical Topographic Map Explorer

    • gis.data.mass.gov
    Updated Mar 18, 2024
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    MassGIS - Bureau of Geographic Information (2024). USGS Historical Topographic Map Explorer [Dataset]. https://gis.data.mass.gov/datasets/usgs-historical-topographic-map-explorer
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    Dataset updated
    Mar 18, 2024
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Description

    USGS Historical Topographic Map Explorer

  5. a

    USGS Historical Coastal Topographic Map Image

    • hub.arcgis.com
    • geo-massdot.opendata.arcgis.com
    Updated Feb 15, 2019
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    MassGIS - Bureau of Geographic Information (2019). USGS Historical Coastal Topographic Map Image [Dataset]. https://hub.arcgis.com/maps/94894e523b6944469d7ddcd1938dc65a
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    Dataset updated
    Feb 15, 2019
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    This tile service is derived from a digital raster graphic of the historical 15-minute USGS topographic quadrangle maps of coastal towns in Massachusetts. These quadrangles were mosaicked together to create a single data layer of the coast of Massachusetts and a large portion of the southeastern area of the state.The Massachusetts Office of Coastal Zone Management (CZM) obtained the map images from the Harvard Map Collection. The maps were produced in the late 1890s and early 20th century at a scale of 1:62,500 or 1:63,360 and are commonly known as 15-minute quadrangle maps because each map covers a four-sided area of 15 minutes of latitude and 15 minutes of longitude.

  6. m

    MassGIS Topographic Features for Basemap

    • gis.data.mass.gov
    • hub.arcgis.com
    Updated Mar 5, 2015
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    MassGIS - Bureau of Geographic Information (2015). MassGIS Topographic Features for Basemap [Dataset]. https://gis.data.mass.gov/maps/massgis-topographic-features-for-basemap/about
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    Dataset updated
    Mar 5, 2015
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    The MassGIS Topographic Features for Basemap is a general-reference map that contains a variety of features, all from the MassGIS database. The map was designed by MassGIS staff in ESRI's ArcMap 10.x software and was
    cached (pre-rendered) for the Web using ArcGIS Server 10.x. The caching process greatly speeds the display of all basemap features.This Topographic Base includes shaded relief, elevation contour lines with labels in feet, protected open space (parks, forests, preserves, etc.), hydrography (lakes, ponds, rivers, streams, wetlands), ocean, surrounding states, developed land areas, and airfields and runways.Other "basemap" features, like streets, infrastructure (schools, hospitals, rail lines, etc.) and political boundaries, are included in the "MassGIS Detailed Features Basemap Map Layer" and may be drawn atop this Topographic Base to display a more complete basemap.See full details

  7. a

    USGS Topographic Quadrangle Maps

    • geo-massdot.opendata.arcgis.com
    • hub.arcgis.com
    Updated May 18, 2015
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    MassGIS - Bureau of Geographic Information (2015). USGS Topographic Quadrangle Maps [Dataset]. https://geo-massdot.opendata.arcgis.com/datasets/massgis::usgs-topographic-quadrangle-maps
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    Dataset updated
    May 18, 2015
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    MassGIS scanned the USGS topographic quadrangles to create a digital database that can provide images of the paper maps. These images can be used as a backdrop for plotting vector data and for interpretation and analysis. MassGIS scanned the 15-minute series (vintage 1982-1990) where these maps were available; the 7.5-minute maps (1967-1979) were used elsewhere. Note that the elevation labels for the contours on the maps may be in meters or feet, depending on the vintage of the original paper map that MassGIS scanned. Contour labels on maps from 1982 and later are in meters; labels on maps from 1967 through 1979 are in feet. See the

  8. d

    Shuttle Radar Topography Mission (SRTM) Images

    • catalog.data.gov
    • datasets.ai
    • +4more
    Updated Apr 10, 2025
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    DOI/USGS/EROS (2025). Shuttle Radar Topography Mission (SRTM) Images [Dataset]. https://catalog.data.gov/dataset/shuttle-radar-topography-mission-srtm-images
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    Dataset updated
    Apr 10, 2025
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Description

    Culminating more than four years of processing data, NASA and the National Geospatial-Intelligence Agency (NGA) have completed Earth's most extensive global topographic map. The mission is a collaboration among NASA, NGA, and the German and Italian space agencies. For 11 days in February 2000, the space shuttle Endeavour conducted the Shuttle Radar Topography Mission (SRTM) using C-Band and X-Band interferometric synthetic aperture radars to acquire topographic data over 80% of the Earth's land mass, creating the first-ever near-global data set of land elevations. This data was used to produce topographic maps (digital elevation maps) 30 times as precise as the best global maps used today. The SRTM system gathered data at the rate of 40,000 per minute over land. They reveal for the first time large, detailed swaths of Earth's topography previously obscured by persistent cloudiness. The data will benefit scientists, engineers, government agencies and the public with an ever-growing array of uses. The SRTM radar system mapped Earth from 56 degrees south to 60 degrees north of the equator. The resolution of the publicly available data is three arc-seconds (1/1,200th of a degree of latitude and longitude, about 295 feet, at Earth's equator). The final data release covers Australia and New Zealand in unprecedented uniform detail. It also covers more than 1,000 islands comprising much of Polynesia and Melanesia in the South Pacific, as well as islands in the South Indian and Atlantic oceans. SRTM data are being used for applications ranging from land use planning to "virtual" Earth exploration. Currently, the mission's homepage "http://www.jpl.nasa.gov/srtm" provides direct access to recently obtained earth images. The Shuttle Radar Topography Mission C-band data for North America and South America are available to the public. A list of complete public data set is available at "http://www2.jpl.nasa.gov/srtm/dataprod.htm" The data specifications are within the following parameters: 30-meter X 30-meter spatial sampling with 16 meter absolute vertical height accuracy, 10-meter relative vertical height accuracy, and 20-meter absolute horizontal circular accuracy. From the JPL Mission Products Summary, "http://www.jpl.nasa.gov/srtm/dataprelimdescriptions.html". The primary products of the SRTM mission are the digital elevation maps of most of the Earth's surface. Visualized images of these maps are available for viewing online. Below you will find descriptions of the types of images that are being generated: Radar Image Radar Image with Color as Height Radar Image with Color Wrapped Fringes -Shaded Relief Perspective View with B/W Radar Image Overlaid Perspective View with Radar Image Overlaid, Color as Height Perspective View of Shaded Relief Perspective View with Landsat or other Image Overlaid Contour Map - B/W with Contour Lines Stereo Pair Anaglypgh The SRTM radar contained two types of antenna panels, C-band and X-band. The near-global topographic maps of Earth called Digital Elevation Models (DEMs) are made from the C-band radar data. These data were processed at the Jet Propulsion Laboratory and are being distributed through the United States Geological Survey's EROS Data Center. Data from the X-band radar are used to create slightly higher resolution DEMs but without the global coverage of the C-band radar. The SRTM X-band radar data are being processed and distributed by the German Aerospace Center, DLR.

  9. USGS Historical Topographic Maps

    • hub.arcgis.com
    Updated Oct 4, 2019
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    Esri (2019). USGS Historical Topographic Maps [Dataset]. https://hub.arcgis.com/datasets/ee19794feeed4e068ba99b2ddcb6c2db
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    Dataset updated
    Oct 4, 2019
    Dataset authored and provided by
    Esrihttp://esri.com/
    Area covered
    Description

    The ArcGIS Online USGS Topographic Maps image service contains over 181,000 historical topographic quadrangle maps (quads) dating from 1879 to 2006. These maps are part of the USGS Historical Topographic Map Collection (HTMC) which includes all the historical quads that had been printed since the USGS topographic mapping program was initiated in 1879. Previously available only as printed lithographic copies, the historical maps were scanned “as is” to create high-resolution images that capture the content and condition of each map sheet. All maps were georeferenced, and map metadata was captured as part of the process.

    For the Esri collection, the scanned maps were published as this ArcGIS Online image service which can be viewed on the web and allows users to download individual scanned images. Esri’s collection contains historical quads (excluding orthophotos) dating from 1879 to 2006 with scales ranging from 1:10,000 to 1:250,000. The scanned maps can be used in ArcGIS Pro, ArcGIS Online, and ArcGIS Enterprise. They can also be downloaded as georeferenced TIFs for use in these and other applications.

    We make it easy for you to explore and download these maps, or quickly create an ArcGIS Online map, using our Historical Topo Map Explorer app. The app provides a visual interface to search and explore the historical maps by geographic extent, publication year, and map scale. And you can overlay the historical maps on a satellite image or 3D hillshade and add labels for current geographic features.

  10. d

    ScienceBase Item Summary Page

    • datadiscoverystudio.org
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    U.S. Geological Survey, ScienceBase Item Summary Page [Dataset]. http://datadiscoverystudio.org/geoportal/rest/metadata/item/4ef72fbf8b214327acdef105688ddb84/html
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    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Description

    Link to the ScienceBase Item Summary page for the item described by this metadata record. Service Protocol: Link to the ScienceBase Item Summary page for the item described by this metadata record. Application Profile: Web Browser. Link Function: information

  11. s

    USGS US Topo 7.5-minute map for Billerica, MA 2012

    • cinergi.sdsc.edu
    geopdf
    Updated Jun 6, 2012
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    U.S. Geological Survey (2012). USGS US Topo 7.5-minute map for Billerica, MA 2012 [Dataset]. http://cinergi.sdsc.edu/geoportal/rest/metadata/item/dfcd468821c545f698173a0db0b70377/html
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    geopdf(23.221841)Available download formats
    Dataset updated
    Jun 6, 2012
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Description

    Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.

  12. d

    Springs and Sinkhole Centroids of the Ozark Plateaus, Northern Arkansas from...

    • datasets.ai
    • search.dataone.org
    • +2more
    55
    Updated Sep 12, 2024
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    Department of the Interior (2024). Springs and Sinkhole Centroids of the Ozark Plateaus, Northern Arkansas from Topographic Maps [Dataset]. https://datasets.ai/datasets/springs-and-sinkhole-centroids-of-the-ozark-plateaus-northern-arkansas-from-topographic-ma
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    55Available download formats
    Dataset updated
    Sep 12, 2024
    Dataset authored and provided by
    Department of the Interior
    Area covered
    Ozark Mountains, Arkansas
    Description

    Springs and sinkholes in the Ozark Plateaus Physiographic Province (Ozarks) in Arkansas were digitized from 1:24,000-scale topographic maps to produce a digital dataset of karst features. Karst landscapes generally are created from bedrock dissolution that results in distinctive landforms, including sinkholes, springs, caves, and sinking streams, and a high degree of interaction between surface water and groundwater. The dataset can be used to better understand groundwater flow in the karst landscape of the Arkansas Ozarks and potential effects of karst-feature density on water quality, geomorphology, water resources, and karst hazards. In the Ozarks, karst features are present in several limestone and dolomite formations (for example, the Boone Formation, Pitkin Limestone, and Powell Dolomite). Springs (points) and sinkholes (polygons and centroid points) were digitized from over 200 topographic quadrangle maps from 22 different counties with published dates ranging from 1942 to 2014. The digitization efforts using the topographic maps resulted in 805 springs and 1,242 sinkholes across the Arkansas Ozarks. This dataset represents the springs and sinkhole centroid points. Topographic maps were the only source of data used to provide a distribution from a single data source over the Ozarks in Arkansas. This karst-feature dataset will be a resource for years to come in karst science, water science, geomorphology, and other fields.

  13. s

    ScienceBase Item Summary Page

    • cinergi.sdsc.edu
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    U.S. Geological Survey, ScienceBase Item Summary Page [Dataset]. http://cinergi.sdsc.edu/geoportal/rest/metadata/item/3e917101834f4b85a80e0e4173b5546e/html
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    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Description

    Link to the ScienceBase Item Summary page for the item described by this metadata record. Service Protocol: Link to the ScienceBase Item Summary page for the item described by this metadata record. Application Profile: Web Browser. Link Function: information

  14. d

    USGS US Topo 7.5-minute map for Orange, MA 2012

    • datadiscoverystudio.org
    geopdf
    Updated Jun 6, 2012
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    U.S. Geological Survey (2012). USGS US Topo 7.5-minute map for Orange, MA 2012 [Dataset]. http://datadiscoverystudio.org/geoportal/rest/metadata/item/f6320efb07f5442ea352000cb93597c5/html
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    geopdf(23.157978)Available download formats
    Dataset updated
    Jun 6, 2012
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Description

    Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.

  15. C

    Topographic map 1 : 10,000 (derived from the ATKIS basic landscape model) -...

    • ckan.mobidatalab.eu
    pdf
    Updated Aug 15, 2023
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    Landesvermessung und Geobasisinformation Brandenburg (LGB) (2023). Topographic map 1 : 10,000 (derived from the ATKIS basic landscape model) - 4046-SW Dahme/Mark - Niebendorf-Heinsdorf [Dataset]. https://ckan.mobidatalab.eu/dataset/topographical-map-1-10-000-derived-from-the-atkis-basis-landscape-model-4046-sw-dahme-ma
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    pdfAvailable download formats
    Dataset updated
    Aug 15, 2023
    Dataset provided by
    Landesvermessung und Geobasisinformation Brandenburg (LGB)
    License

    Data licence Germany – Attribution – Version 2.0https://www.govdata.de/dl-de/by-2-0
    License information was derived automatically

    Area covered
    Dahme/Mark
    Description

    The topographic maps are generated from digital landscape and terrain models and the official real estate cadastre information system ALKIS and visualized according to the nationwide ATKIS signature catalogue. The topographic maps are comprehensive and available in the uniform geodetic reference system and map projection for the state of Brandenburg. They are available as analogue map prints (plots), as raster data and as web services. When using the data, the license conditions must be observed.

  16. m

    Topographic Contours

    • gis.data.mass.gov
    • hub.arcgis.com
    Updated Jan 17, 2025
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    City of Worcester, MA (2025). Topographic Contours [Dataset]. https://gis.data.mass.gov/maps/worcesterma::topographic-contours-1
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    Dataset updated
    Jan 17, 2025
    Dataset authored and provided by
    City of Worcester, MA
    Area covered
    Description

    Contour lines connect points of equal elevation. This data was collected from the 2003 flyover project whose purpose was to update planimetric data. Applied Geographics, Inc (acquired by The Sanborn Company, Inc) managed the project and Chas. H. Sells, Inc. (acquired by WSP) was responsible for the data.The vertical datum associated with this elevation data is NAVD88.Informing Worcester is the City of Worcester's open data portal where interested parties can obtain public information at no cost.

  17. a

    MassGIS Topographic Features for Basemap (Tile Service)

    • geo-massdot.opendata.arcgis.com
    • gis.data.mass.gov
    • +1more
    Updated Mar 14, 2024
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    MassGIS - Bureau of Geographic Information (2024). MassGIS Topographic Features for Basemap (Tile Service) [Dataset]. https://geo-massdot.opendata.arcgis.com/datasets/massgis::massgis-topographic-features-for-basemap-tile-service
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    Dataset updated
    Mar 14, 2024
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    The MassGIS Topographic Features for Basemap is a general-reference map that contains a variety of features, all from the MassGIS database. The map was designed by MassGIS staff and cached (pre-rendered) for the web using ArcGIS Pro. The caching process greatly speeds the display of all basemap features.

    This Topographic Base includes shaded relief, elevation contour lines with labels in feet, protected open space (parks, forests, preserves, etc.), hydrography (lakes, ponds, rivers, streams, wetlands), ocean, surrounding states, developed land areas, and airfields and runways.

    Other "basemap" features, like streets, infrastructure (schools, hospitals, rail lines, etc.) and political boundaries, are included in the "MassGIS Detailed Features Basemap Map Layer" and may be drawn atop this Topographic Base to display a more complete basemap.More details...

  18. d

    Data from: Prospect- and Mine-Related Features from U.S. Geological Survey...

    • catalog.data.gov
    • data.usgs.gov
    • +1more
    Updated Jul 6, 2024
    + more versions
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    U.S. Geological Survey (2024). Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (ver. 10.0, May 2023) [Dataset]. https://catalog.data.gov/dataset/prospect-and-mine-related-features-from-u-s-geological-survey-7-5-and-15-minute-topographi
    Explore at:
    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    United States
    Description

    Version 10.0 of these data are part of a larger U.S. Geological Survey (USGS) project to develop an updated geospatial database of mines, mineral deposits, and mineral regions in the United States. Mine and prospect-related symbols, such as those used to represent prospect pits, mines, adits, dumps, tailings, etc., hereafter referred to as “mine” symbols or features, have been digitized from the 7.5-minute (1:24,000, 1:25,000-scale; and 1:10,000, 1:20,000 and 1:30,000-scale in Puerto Rico only) and the 15-minute (1:48,000 and 1:62,500-scale; 1:63,360-scale in Alaska only) archive of the USGS Historical Topographic Map Collection (HTMC), or acquired from available databases (California and Nevada, 1:24,000-scale only). Compilation of these features is the first phase in capturing accurate locations and general information about features related to mineral resource exploration and extraction across the U.S. The compilation of 725,690 point and polygon mine symbols from approximately 106,350 maps across 50 states, the Commonwealth of Puerto Rico (PR) and the District of Columbia (DC) has been completed: Alabama (AL), Alaska (AK), Arizona (AZ), Arkansas (AR), California (CA), Colorado (CO), Connecticut (CT), Delaware (DE), Florida (FL), Georgia (GA), Hawaii (HI), Idaho (ID), Illinois (IL), Indiana (IN), Iowa (IA), Kansas (KS), Kentucky (KY), Louisiana (LA), Maine (ME), Maryland (MD), Massachusetts (MA), Michigan (MI), Minnesota (MN), Mississippi (MS), Missouri (MO), Montana (MT), Nebraska (NE), Nevada (NV), New Hampshire (NH), New Jersey (NJ), New Mexico (NM), New York (NY), North Carolina (NC), North Dakota (ND), Ohio (OH), Oklahoma (OK), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), South Carolina (SC), South Dakota (SD), Tennessee (TN), Texas (TX), Utah (UT), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI), and Wyoming (WY). The process renders not only a more complete picture of exploration and mining in the U.S., but an approximate timeline of when these activities occurred. These data may be used for land use planning, assessing abandoned mine lands and mine-related environmental impacts, assessing the value of mineral resources from Federal, State and private lands, and mapping mineralized areas and systems for input into the land management process. These data are presented as three groups of layers based on the scale of the source maps. No reconciliation between the data groups was done.

  19. d

    USGS US Topo 7.5-minute map for Monson, MA-CT 2012

    • datadiscoverystudio.org
    geopdf
    Updated Jun 6, 2012
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    U.S. Geological Survey (2012). USGS US Topo 7.5-minute map for Monson, MA-CT 2012 [Dataset]. http://datadiscoverystudio.org/geoportal/rest/metadata/item/30f7e93a13044039a33f68b3d9adf1ba/html
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    geopdf(23.115709)Available download formats
    Dataset updated
    Jun 6, 2012
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Description

    Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.

  20. s

    USGS US Topo 7.5-minute map for East Providence, RI-MA 2012

    • cinergi.sdsc.edu
    geopdf
    Updated May 18, 2012
    + more versions
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    U.S. Geological Survey (2012). USGS US Topo 7.5-minute map for East Providence, RI-MA 2012 [Dataset]. http://cinergi.sdsc.edu/geoportal/rest/metadata/item/c387f1da5b034cbcba9fd62c095d7332/html
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    geopdf(22.045317)Available download formats
    Dataset updated
    May 18, 2012
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Description

    Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.

Share
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MassGIS (Bureau of Geographic Information) (1989). MassGIS Data: USGS Topographic Map Quadrangle Template [Dataset]. https://www.mass.gov/info-details/massgis-data-usgs-topographic-map-quadrangle-template

MassGIS Data: USGS Topographic Map Quadrangle Template

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Dataset updated
Mar 15, 1989
Dataset authored and provided by
MassGIS (Bureau of Geographic Information)
Area covered
Massachusetts
Description

March 1989

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