76 datasets found
  1. a

    USGS topoView - Download Topo Maps

    • hub.arcgis.com
    • nconemap.gov
    Updated May 28, 2020
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    NC OneMap / State of North Carolina (2020). USGS topoView - Download Topo Maps [Dataset]. https://hub.arcgis.com/documents/48e5c4bc15a14d16bc38c4e47662d86f
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    Dataset updated
    May 28, 2020
    Dataset authored and provided by
    NC OneMap / State of North Carolina
    License

    https://www.nconemap.gov/pages/termshttps://www.nconemap.gov/pages/terms

    Description

    Download US Geological Survey topographic maps in multiple formats, scales, and years, including 1:24,000-scale topo maps, using the USGS topoView web application.Learn how to use topoView: https://youtu.be/UCTIvQqVr4E

  2. USGS Historical Topographic Map Explorer

    • data.amerigeoss.org
    • amerigeo.org
    • +2more
    Updated Oct 10, 2019
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    Esri (2019). USGS Historical Topographic Map Explorer [Dataset]. https://data.amerigeoss.org/dataset/usgs-historical-topographic-map-explorer1
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    html, arcgis geoservices rest apiAvailable download formats
    Dataset updated
    Oct 10, 2019
    Dataset provided by
    Esrihttp://esri.com/
    Description

    The ArcGIS Online US Geological Survey (USGS) topographic map collection now contains over 177,000 historical quadrangle maps dating from 1882 to 2006. The USGS Historical Topographic Map Explorer app brings these maps to life through an interface that guides users through the steps for exploring the map collection:

    • Find a location of interest.
    • View the maps.
    • Compare the maps.
    • Download and share the maps or open them in ArcGIS Desktop (ArcGIS Pro or ArcMap) where places will appear in their correct geographic location.
    • Save the maps in an ArcGIS Online web map.

    Finding the maps of interest is simple. Users can see a footprint of the map in the map view before they decide to add it to the display, and thumbnails of the maps are shown in pop-ups on the timeline. The timeline also helps users find maps because they can zoom and pan, and maps at select scales can be turned on or off by using the legend boxes to the left of the timeline. Once maps have been added to the display, users can reorder them by dragging them. Users can also download maps as zipped GeoTIFF images. Users can also share the current state of the app through a hyperlink or social media. This ArcWatch article guides you through each of these steps: https://www.esri.com/esri-news/arcwatch/1014/envisioning-the-past.


    Once signed in, users can create a web map with the current map view and any maps they have selected. The web map will open in ArcGIS Online. The title of the web map will be the same as the top map on the side panel of the app. All historical maps that were selected in the app will appear in the Contents section of the web map with the earliest at the top and the latest at the bottom. Turning the historical maps on and off or setting the transparency on the layers allows users to compare the historical maps over time. Also, the web map can be opened in ArcGIS Desktop (ArcGIS Pro or ArcMap) and used for exploration or data capture.

    Users can find out more about the USGS topograhic map collection and the app by clicking on the information button at the upper right. This opens a pop-up with information about the maps and app. The pop-up includes a useful link to a USGS web page that provides access to documents with keys explaining the symbols on historic and current USGS topographic maps. The pop-up also has a link to send Esri questions or comments about the map collection or the app.

    We have shared the updated app on GitHub, so users can download it and configure it to work with their own map collections.

  3. FWS R7 Realty USGS Topo Maps feature layer

    • hub.arcgis.com
    • gis-fws.opendata.arcgis.com
    Updated May 1, 2018
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    U.S. Fish & Wildlife Service (2018). FWS R7 Realty USGS Topo Maps feature layer [Dataset]. https://hub.arcgis.com/maps/39df13bfdfdc4d11afcd63be2a5aa622
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    Dataset updated
    May 1, 2018
    Dataset provided by
    U.S. Fish and Wildlife Servicehttp://www.fws.gov/
    Authors
    U.S. Fish & Wildlife Service
    Area covered
    Description

    This map service displays the extents and designated names of the 1:63,360 and 1:250,000 scale USGS topographic maps for the State of Alaska. This feature layer includes online links to the USGS map download site. The Alaska topo maps were produced by USGS in the 1950s and 1960s, with limited newer updates in selected areas, primarily in urban areas such as Anchorage, Fairbanks, and Juneau.All Alaska topo maps, as well as topo maps of the other 49 United States, can be downloaded from the U.S. Geological Survey at https://apps.nationalmap.gov/downloader/#/

  4. m

    MassGIS Data: USGS Topographic Quadrangle Images

    • mass.gov
    Updated Mar 15, 2008
    + more versions
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    MassGIS (Bureau of Geographic Information) (2008). MassGIS Data: USGS Topographic Quadrangle Images [Dataset]. https://www.mass.gov/info-details/massgis-data-usgs-topographic-quadrangle-images
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    Dataset updated
    Mar 15, 2008
    Dataset authored and provided by
    MassGIS (Bureau of Geographic Information)
    Area covered
    Massachusetts
    Description

    December 1995, June 2001

  5. a

    USGS Topo Maps 24k

    • hub.arcgis.com
    • home-ecgis.hub.arcgis.com
    Updated Jan 10, 2020
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    Eaton County Michigan (2020). USGS Topo Maps 24k [Dataset]. https://hub.arcgis.com/maps/576b1fe29c5c462c8104b14168476b87
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    Dataset updated
    Jan 10, 2020
    Dataset authored and provided by
    Eaton County Michigan
    Area covered
    Description

    Set of all the USGS 24k Quadrangle maps that intersect Eaton County, Michigan.The quadrangles included are Aurelius, Bellevue, Charlotte, Chester, Dimondale, Duck Lake, Eagle, Eaton Rapids, Hoytville, Lansing North, Lansing South, Nashville, Needmore, Olivet, Onondaga, Portland South, Saubee Lake, Springport, Wacousta, and Woodbury. They are all the 2019 versions of the maps except Needmore, which is 2017. These maps were acquired by download from the National Map Viewer.https://www.usgs.gov/core-science-systems/ngp/tnm-delivery/ on 1/9/2020.

  6. a

    USGS Map Grid Indices

    • vgin-vgin.hub.arcgis.com
    • vgin.vdem.virginia.gov
    Updated Jul 6, 2021
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    Virginia Geographic Information Network (2021). USGS Map Grid Indices [Dataset]. https://vgin-vgin.hub.arcgis.com/datasets/usgs-map-grid-indices
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    Dataset updated
    Jul 6, 2021
    Dataset authored and provided by
    Virginia Geographic Information Network
    Description

    Download Virginia Grid ShapefilesDownload Virginia Grid GDBGrid REST ServiceThis data represents the map extent for current and historical USGS topographic maps for the United States and Territories, including 1 X 2 Degree, 1 X 1 Degree, 30 X 60 Minute, 15 X 15 Minute, 7.5 X 7.5 Minute, and 3.75 X 3.75 Minute. The grid was generated using ESRI ArcInfo GIS software.

  7. d

    1 meter Digital Elevation Models (DEMs) - USGS National Map 3DEP...

    • catalog.data.gov
    • data.usgs.gov
    • +3more
    Updated Mar 11, 2025
    + more versions
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    U.S. Geological Survey (2025). 1 meter Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection [Dataset]. https://catalog.data.gov/dataset/1-meter-digital-elevation-models-dems-usgs-national-map-3dep-downloadable-data-collection
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    Dataset updated
    Mar 11, 2025
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Description

    This is a tiled collection of the 3D Elevation Program (3DEP) and is one meter resolution. The 3DEP data holdings serve as the elevation layer of The National Map, and provide foundational elevation information for earth science studies and mapping applications in the United States. Scientists and resource managers use 3DEP data for hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The elevations in this DEM represent the topographic bare-earth surface. USGS standard one-meter DEMs are produced exclusively from high resolution light detection and ranging (lidar) source data of one-meter or higher resolution. One-meter DEM surfaces are seamless within collection projects, but, not necessarily seamless across projects. The spatial reference used for tiles of the one-meter DEM within the conterminous United States (CONUS) is Universal Transverse Mercator (UTM) in units of meters, and in conformance with the North American Datum of 1983 (NAD83). All bare earth elevation values are in meters and are referenced to the North American Vertical Datum of 1988 (NAVD88). Each tile is distributed in the UTM Zone in which it lies. If a tile crosses two UTM zones, it is delivered in both zones. The one-meter DEM is the highest resolution standard DEM offered in the 3DEP product suite. Other 3DEP products are nationally seamless DEMs in resolutions of 1/3, 1, and 2 arc seconds. These seamless DEMs were referred to as the National Elevation Dataset (NED) from about 2000 through 2015 at which time they became the seamless DEM layers under the 3DEP program and the NED name and system were retired. Other 3DEP products include five-meter DEMs in Alaska as well as various source datasets including the lidar point cloud and interferometric synthetic aperture radar (Ifsar) digital surface models and intensity images. All 3DEP products are public domain.

  8. M

    Minnesota Scanned Topographic Map Service

    • gisdata.mn.gov
    • data.wu.ac.at
    html, wms
    Updated Jul 21, 2021
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    Geospatial Information Office (2021). Minnesota Scanned Topographic Map Service [Dataset]. https://gisdata.mn.gov/dataset/mn-topographic-maps-service
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    html, wmsAvailable download formats
    Dataset updated
    Jul 21, 2021
    Dataset provided by
    Geospatial Information Office
    Area covered
    Minnesota
    Description

    The Minnesota Geospatial Image Service provides versatile access to the USGS Topographic Map Series layers (DRG format) using a Web Map Service (WMS). Using this service eliminates the need to download and store these background layers locally. Three scales of USGS topographic maps are available through this service: 1:250,000, 1:100,000, and 1:24,000. The maps are 1949-1994 vintage.

    For more information:
    - How to use a WMS: https://www.mngeo.state.mn.us/chouse/wms/how_to_use_wms.html
    - Technical specifications for using this service: https://www.mngeo.state.mn.us/chouse/wms/wms_image_server_specs.html
    - About topo maps: https://www.mngeo.state.mn.us/chouse/elevation/topo_maps.html
    - USGS services providing access to current topo maps: https://apps.nationalmap.gov/services/

  9. USGS Historical Topographic Maps

    • czm-moris-mass-eoeea.hub.arcgis.com
    • hub.arcgis.com
    Updated Oct 4, 2019
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    Esri (2019). USGS Historical Topographic Maps [Dataset]. https://czm-moris-mass-eoeea.hub.arcgis.com/items/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

    USGS - Topo basemap from The National Map

    • catalog.data.gov
    • datadiscoverystudio.org
    • +1more
    Updated Nov 17, 2021
    + more versions
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    (2021). USGS - Topo basemap from The National Map [Dataset]. https://catalog.data.gov/ar/dataset/usgs-topo-basemap-from-the-national-map
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    Dataset updated
    Nov 17, 2021
    Description

    The USGS Topographic Base Map from The National Map. This tile cached web map service combines the most current data services (Boundaries, Names, Transportation, Elevation, Hydrography, Land Cover and others) that make up The National Map and displays them in a Topographic view. New contours generated from the National Map US Topo product are included and are visible along with other data down to the 1:18,000 zoom scale.This cached tiled base map also provides a visualization of the free data that is available for download from The National Map at viewer.nationalmap.gov/viewer.

  11. u

    Raton 1:100000 Quad Transportation DLGs

    • gstore.unm.edu
    csv, geojson, gml +5
    Updated Feb 7, 2009
    + more versions
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    Earth Data Analysis Center (2009). Raton 1:100000 Quad Transportation DLGs [Dataset]. https://gstore.unm.edu/apps/rgisarchive/datasets/bd28f0ac-dec2-4563-86d0-824487c996b1/metadata/FGDC-STD-001-1998.html
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    gml(5), kml(5), xls(5), zip(1), json(5), geojson(5), csv(5), shp(5)Available download formats
    Dataset updated
    Feb 7, 2009
    Dataset provided by
    Earth Data Analysis Center
    Time period covered
    Jun 19, 1987
    Area covered
    Colfax County (35007), West Bounding Coordinate -105.000030517578 East Bounding Coordinate -103.999992370605 North Bounding Coordinate 36.9978523254395 South Bounding Coordinate 36.499828338623
    Description

    Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1: 100,000 are used. Intermediate-scale DLG's are sold in five categories: (1) Public Land Survey System; (2) boundaries (3) transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.

  12. a

    USGS TNM US Topo Availability

    • catalogue.arctic-sdi.org
    Updated Jun 2, 2022
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    (2022). USGS TNM US Topo Availability [Dataset]. https://catalogue.arctic-sdi.org/geonetwork/srv/search?keyword=1:25
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    Dataset updated
    Jun 2, 2022
    Description

    The USGS US Topo Availability service from The National Map consists of footprints where US Topo products are currently available. Various green tints are used to reflect the year in which US Topo map products have been published. The service is updated daily and contains the same data used in footprints in the Map Locator & Downloader application program interface used in the USGS Store (http://store.usgs.gov). In addition to access through The National Map download client (http://viewer.nationalmap.gov/basic), US Topo products and other USGS publications are available through the USGS Store. For additional information, go to http://nationalmap.gov/ustopo.

  13. u

    Springer 1:100000 Quad Hydrography DLGs

    • gstore.unm.edu
    zip
    Updated Feb 17, 2009
    + more versions
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    Earth Data Analysis Center (2009). Springer 1:100000 Quad Hydrography DLGs [Dataset]. http://gstore.unm.edu/apps/rgis/datasets/3959e023-1e3f-4be5-b2a5-ea0c251b10af/metadata/FGDC-STD-001-1998.html
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    zip(2)Available download formats
    Dataset updated
    Feb 17, 2009
    Dataset provided by
    Earth Data Analysis Center
    Time period covered
    Jun 19, 1987
    Area covered
    Rio Arriba County (35039), West Bounding Coordinate -106.000031 East Bounding Coordinate -102.999908 North Bounding Coordinate 37.000141 South Bounding Coordinate 35.499973
    Description

    Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1: 100,000 are used. Intermediate-scale DLG's are sold in five categories: (1) Public Land Survey System; (2) boundaries (3) transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.

  14. d

    1/9th Arc-second Digital Elevation Models (DEMs) - USGS National Map 3DEP...

    • catalog.data.gov
    • data.usgs.gov
    • +2more
    Updated Mar 11, 2025
    + more versions
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    U.S. Geological Survey (2025). 1/9th Arc-second Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection [Dataset]. https://catalog.data.gov/dataset/1-9th-arc-second-digital-elevation-models-dems-usgs-national-map-3dep-downloadable-data-co
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    Dataset updated
    Mar 11, 2025
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Description

    This is a tiled collection of the 3D Elevation Program (3DEP) and is 1/9 arc-second (approximately 3 m) resolution.The 3DEP data holdings serve as the elevation layer of The National Map, and provide foundational elevation information for earth science studies and mapping applications in the United States. Scientists and resource managers use 3DEP data for hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The elevations in this DEM represent the topographic bare-earth surface. The seamless 1/9 arc-second DEM layers are derived from diverse source data that are processed to a common coordinate system and unit of vertical measure. These data are distributed in geographic coordinates in units of decimal degrees, and in conformance with the North American Datum of 1983 (NAD 83). All elevation values are in meters and, over the continental United States, are referenced to the North American Vertical Datum of 1988 (NAVD88). The seamless 1/9 arc-second DEM layer project-based coverage for portions of the conterminous United States, limited areas of Alaska, and Guam. The seamless 1/9 arc-second NED layer is available as pre-staged products tiled in 15 minute blocks in Erdas .img format. Since 2015, the seamless 1/9 arc-second DEM layer is no longer being updated. Other 3DEP products are nationally seamless DEMs in resolutions of 1/3, 1, and 2 arc seconds. These seamless DEMs were referred to as the National Elevation Dataset (NED) from about 2000 through 2015 at which time they became the seamless DEM layers under the 3DEP program and the NED name and system were retired. Other 3DEP products include one-meter DEMs produced exclusively from high resolution light detection and ranging (lidar) source data and five-meter DEMs in Alaska as well as various source datasets including the lidar point cloud and interferometric synthetic aperture radar (Ifsar) digital surface models and intensity images. All 3DEP products are public domain.

  15. u

    San Mateo Mountains 1:100000 Quad Hydrography DLGs

    • gstore.unm.edu
    zip
    Updated Feb 17, 2009
    + more versions
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    Earth Data Analysis Center (2009). San Mateo Mountains 1:100000 Quad Hydrography DLGs [Dataset]. http://gstore.unm.edu/apps/rgis/datasets/7b0bfee6-cb9a-4adb-841b-eea85812aa22/metadata/FGDC-STD-001-1998.html
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    zip(3)Available download formats
    Dataset updated
    Feb 17, 2009
    Dataset provided by
    Earth Data Analysis Center
    Time period covered
    Jun 19, 1987
    Area covered
    West Bounding Coordinate -108.000092 East Bounding Coordinate -105.999947 North Bounding Coordinate 35.000069 South Bounding Coordinate 32.499969, Socorro County (35053)
    Description

    Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1: 100,000 are used. Intermediate-scale DLG's are sold in five categories: (1) Public Land Survey System; (2) boundaries (3) transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.

  16. u

    Alamo Hueco Mountains 1:100000 Quad Transportation DLGs

    • gstore.unm.edu
    csv, geojson, gml +5
    Updated Feb 7, 2009
    + more versions
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    Earth Data Analysis Center (2009). Alamo Hueco Mountains 1:100000 Quad Transportation DLGs [Dataset]. https://gstore.unm.edu/apps/rgisarchive/datasets/e7017623-a976-4b18-aa92-c435b3f665f3/metadata/FGDC-STD-001-1998.html
    Explore at:
    kml(5), gml(5), geojson(5), csv(5), json(5), shp(5), zip(1), xls(5)Available download formats
    Dataset updated
    Feb 7, 2009
    Dataset provided by
    Earth Data Analysis Center
    Time period covered
    Jun 19, 1987
    Area covered
    Hidalgo County (35023), Alamo Hueco Mountains, West Bounding Coordinate -109.000030517578 East Bounding Coordinate -108.206771850586 North Bounding Coordinate 31.5000629425049 South Bounding Coordinate 31.3314558307309
    Description

    Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1: 100,000 are used. Intermediate-scale DLG's are sold in five categories: (1) Public Land Survey System; (2) boundaries (3) transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.

  17. w

    Digital raster graphic files of 30x60-minute topographic maps in Nevada;...

    • data.wu.ac.at
    • datadiscoverystudio.org
    html
    Updated Dec 5, 2017
    + more versions
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    (2017). Digital raster graphic files of 30x60-minute topographic maps in Nevada; Davis Dam 30x60' Quad [Dataset]. https://data.wu.ac.at/schema/geothermaldata_org/YzFlYzQxNzctNjc5Ni00Y2M2LWE3ZDctOTRiOWFjOTY4OWZk
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    htmlAvailable download formats
    Dataset updated
    Dec 5, 2017
    Area covered
    d4208816908ea50dc6dc273c7853060d7814ff6a
    Description

    The Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic map including the collar information, georeferenced to the UTM grid. A DRG is useful as a source or background layer in a GIS, as a means to perform quality assurance on other digital products, and as a source for the collection and revision of DLG data. DRG's can also be merged with other digital data, e.g. DEM's or DOQ's, to produce a hybrid digital file. To download this resource, please see the link provided.

  18. d

    Quadrangle Boundaries

    • catalog.data.gov
    • data.oregon.gov
    • +1more
    Updated Jan 31, 2025
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    State of Oregon (2025). Quadrangle Boundaries [Dataset]. https://catalog.data.gov/dataset/mapindices-oregon-state-gdb
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    Dataset updated
    Jan 31, 2025
    Dataset provided by
    State of Oregon
    Description

    This is a dataset download, not a document. The Open button will start the download.This data represents the map extent for current and historical USGS topographic maps for the United States and Territories, including 1 X 2 Degree, 1 X 1 Degree, 30 X 60 Minute, 15 X 15 Minute, 7.5 X 7.5 Minute, and 3.75 X 3.75 Minute. The grid was generated using ESRI ArcInfo GIS software.

  19. k

    Download Tagged Vector Contours

    • hub.kansasgis.org
    Updated Nov 6, 2020
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    Kansas State Government GIS (2020). Download Tagged Vector Contours [Dataset]. https://hub.kansasgis.org/maps/a8367826bef34663ac09a02f11ee0e55
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    Dataset updated
    Nov 6, 2020
    Dataset authored and provided by
    Kansas State Government GIS
    Area covered
    Description

    The Kansas Tagged Vector Contour (TVC) dataset consists of digitized contours from the 7.5 minute topographic quadrangle maps. Coverage for the state is incomplete. Contour interval varies. The Kansas TVC dataset was developed to facilitate the production of the Kansas 5 and 10 foot DEM dataset. The original TVC dataset was provided by the U.S. Geological Survey and processed by the Data Access and Support Center (DASC).The full Kansas geospatial catalog is administered by the Kansas Data Access & Support Center (DASC) and can be found at the following URL: https://hub.kansasgis.org/

  20. n

    Shuttle Radar Topography Mission (SRTM) Images

    • cmr.earthdata.nasa.gov
    • datasets.ai
    • +4more
    Updated Jan 29, 2016
    + more versions
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    (2016). Shuttle Radar Topography Mission (SRTM) Images [Dataset]. https://cmr.earthdata.nasa.gov/search/concepts/C1220566448-USGS_LTA.html
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    Dataset updated
    Jan 29, 2016
    Time period covered
    Feb 11, 2000 - Present
    Area covered
    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.

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NC OneMap / State of North Carolina (2020). USGS topoView - Download Topo Maps [Dataset]. https://hub.arcgis.com/documents/48e5c4bc15a14d16bc38c4e47662d86f

USGS topoView - Download Topo Maps

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Dataset updated
May 28, 2020
Dataset authored and provided by
NC OneMap / State of North Carolina
License

https://www.nconemap.gov/pages/termshttps://www.nconemap.gov/pages/terms

Description

Download US Geological Survey topographic maps in multiple formats, scales, and years, including 1:24,000-scale topo maps, using the USGS topoView web application.Learn how to use topoView: https://youtu.be/UCTIvQqVr4E

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