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  1. United States Geological Survey - Wikipedia

    Feb 15, 2021 · The United States Geological Survey (USGS, formerly simply Geological Survey) is a scientific agency of the United States government.The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it.

  2. United States Board on Geographic Names - Wikipedia

    Feb 08, 2021 · The Geographic Names Information System, developed by the BGN in cooperation with the US Geological Survey, includes topographic map names and bibliographic references. The names of books and historic maps which confirm the feature or place name are cited. Variant names, alternatives to official federal names for a feature, are also recorded.

    • September 4, 1890; 130 years ago
  3. Feb 09, 2021 · USGS Historical Topographic Map Explorer. In 2014, the US Geological Survey (USGS) and Esri collaborated to bring the ever-increasing collection of US historical topographic maps to everyone through the USGS Historical Topographic Map Explorer. This app brings to life more than 178,000 maps dating from 1882 to 2006.

    • David Flaxbart
    • 2016
  4. Ecoregion Download Files by State - Region 5 | US EPA

    Feb 09, 2021 · Ecoregion Download Files by State - Region 5 [NOTICE] If you are having issues downloading the files on EcoRegions website, we recommend you try opening the site in another web browser. Or copy the link address to another tab to open the attachment in a new window.

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  6. Feb 12, 2021 · US Geological Survey Historical Topographic Map Collection A database of recent topographic maps, as well as high-resolution scans of more than 178,000 historical topographic maps of the United States Encyclopedia of Geographic Information Science (SAGE)

    • Kelly Giles
    • 2012
  7. Oklahoma County Map - GIS Geography

    Feb 01, 2021 · This Oklahoma county map displays its 77 counties. This tally of 77 ranks the 17th highest for number of counties in the United States. Oklahoma County is the most populated county in the state of Oklahoma with close to 800,000 people. This is primarily because the state capital, Oklahoma City, is located in this county. The least populated ...

  8. Feb 15, 2021 · A growing list of available online maps from across the world, with detailed descriptions of each site. This link is the third in a series, but links to both earlier lists and descriptions. National Map (US Geological Survey) An interactive map service providing topographic information for the United States from several different agencies.

  9. Research Guides: Geospatial and Statistical Data Resources ...

    6 days ago · Data for Beijing and China; microdata and maps (e.g. road networks, parcels, human mobility, historical city maps). Three levels of data access: free download, email request, and shared among research fellows / student members

  10. Portland/Oregon Data - Geography - Research Guides at ...

    Jan 28, 2021 · Geography: Portland/Oregon Data. ... US Geological Survey Information for Oregon ... Use Metro's free online mapping service to view and share maps and data or to ...

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