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Datasets

  • National Parks

    The National Parks dataset is frequently updated by the National Park Service (NPS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation...

  • Nonattainment Area - 8 hr Ozone (2015 Standard)

    The Nonattainment Area - 8 hr ozone (2015) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

  • Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard)

    The Nonattainment Area - Nitrogen Dioxide (NO2-1971) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

  • Link Tonnages

    The Link Tonnages dataset was sourced on December 31, 2023 and was updated on August 22, 2025 by the United States Army Corp of Engineers (USACE) and is part of the U.S....

  • Nonattainment Area - 1 hr Ozone (1979 Standard-Revoked)

    The Nonattainment Area - 1 hr Ozone (1979) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

  • Census TIGER/Line - Roads NGDA

    The TIGER/Line Roads County-based dataset was released July 31, 2025, by the United States Census Bureau (USCB) and is part of the U.S. Department of Transportation...

  • Congressional Districts

    The 119th Congressional Districts dataset reflects boundaries from January 3rd, 2025 from the United States Census Bureau (USCB), and the attributes are updated every Sunday...

  • Waterway Locks NGDA

    The Waterway Locks dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of Transportation (USDOT)/Bureau of...

  • Nonattainment Area - 8 hr Ozone (2008 Standard)

    The Nonattainment Area - 8 hr ozone (2008) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

  • Nonattainment Area - Particulate Matter - 2.5 Annual (2012 Standard)

    The Nonattainment Area - Particulate Matter-2.5 (2012) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department...

  • Nonattainment Area - Particulate Matter - 10 (1987 Standard)

    The Nonattainment Area - Particulate Matter- 10 (1987) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department...

  • Inland Electronic Navigational Charts NGDA

    The Inland Electronic Navigational Charts (IENC) dataset is updated bi-monthly by the US Army Corps (USACE)/Army Geospatial Center (AGC), and part of U.S. Department of...

  • Navigable Waterway Network Nodes NGDA

    The Navigable Waterway Network Nodes dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of Transportation...

  • Amtrak Stations

    The Amtrak Stations dataset is as of December 15, 2025 from Amtrak and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS)...

  • Principal Ports

    The Principal Ports dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of Transportation (USDOT)/Bureau of...

  • BETA - Highway Performance Monitoring System 2023

    The BETA release of the BETA - Highway Performance Monitoring System (HPMS) 2023 dataset was created using the most current data as of August 17, 2024 by the Federal Highway...

  • Dams

    The Dams dataset is a representation of the National Inventory of Dams (NID), maintained and published by the U.S. Army Corps of Engineers, in cooperation with the Association...

  • Navigable Waterway Network Lines NGDA

    The Navigable Waterway Network Lines dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of Transportation...

  • Nonattainment Area - Carbon Monoxide (CO - 1971 Standard)

    The Nonattainment Area - Carbon Monoxide (CO-1971) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

  • Nonattainment Area - Sulfur Dioxide (SO2 - 2010 Standard)

    The Nonattainment Area - Sulfur Dioxide (SO2-2010) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...