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Federal
Walkability Index
U.S. Environmental Protection Agency —
The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of... -
Federal
TIGER/Line Shapefile, 2023, Nation, U.S., International Boundaries (national)
U.S. Census Bureau, Department of Commerce —
The international boundary data featured in this shapefile consists of the boundary between the United States and Canada and the United States and Mexico. Each... -
Federal
Large Scale International Boundaries NGDA
Department of State —
Overview The Office of the Geographer and Global Issues at the U.S. Department of State produces the Large Scale International Boundaries (LSIB) dataset. The current... -
Federal
US EPA Nonattainment Areas and Designations
U.S. Environmental Protection Agency —
This web service contains the following state level layers:Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010 standard),... -
Federal
Maritime Limits and Boundaries of United States of America NGDA
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile... -
Federal
EMAG2v3: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
National Oceanic and Atmospheric Administration, Department of Commerce —
EMAG2v3 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of the previous release... -
Federal
North American Rail Network Lines NGDA
Federal Geographic Data Committee —
The North American Rail Network (NARN) Rail Lines dataset was created in 2016 and was updated on January 29, 2026 from the Federal Railroad Administration (FRA) and... -
Federal
Educational Institutions, US, 2015, ORNL, SEGS
U.S. Environmental Protection Agency —
This SEGS web service contains the following layers: Colleges and Universities, Supplemental Colleges, Private Schools, Public Schools and Day Care Centers . Colleges... -
Federal
US EPA Nonattainment Areas and Designations-8 Hour Ozone (1997 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layers: Ozone 1997 NAAQS NAA State Level and Ozone 1997 NAAQS NAA National Level. Full FGDC metadata records for each layer... -
University
Tularosa, NM 1:250,000 Quad West Half USGS Land Use/Land Cover, 2000
Earth Data Analysis Center, University of New Mexico —
This land cover data set was produced as part of a cooperative project between the U.S. Geological Survey (USGS) and the U.S. Environmental Protection Agency (USEPA)... -
University
Tularosa, NM 1:250,000 Quad West Half USGS Land Use/Land Cover, 2000
Earth Data Analysis Center, University of New Mexico —
This land cover data set was produced as part of a cooperative project between the U.S. Geological Survey (USGS) and the U.S. Environmental Protection Agency (USEPA)... -
Federal
Level III Ecoregions of Alaska
U.S. Environmental Protection Agency —
Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. The ecoregions of Alaska are a... -
Federal
US EPA Nonattainment Areas and Designations-SO2 (2010 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: SO2 2010 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name at the... -
Federal
Spring Bottom Trawl Survey
National Oceanic and Atmospheric Administration, Department of Commerce —
The standardized NEFSC Spring Bottom Trawl Survey was initiated in 1968 and covered an area from Cape Hatteras, NC, to Nova Scotia, Canada, at depths >27m.... -
Federal
Fall Bottom Trawl Survey
National Oceanic and Atmospheric Administration, Department of Commerce —
The standardized NEFSC Fall Bottom Trawl Survey was initiated in 1963 and covered an area from Hudson Canyon, NY to Nova Scotia, Canada. Throughout the years,... -
Federal
Series Information for International Boundaries National TIGER/Line Shapefiles, Current NGDA
U.S. Census Bureau, Department of Commerce —
This is a series-level metadata record. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information... -
Federal
US EPA Nonattainment Areas and Designations-Annual PM2.5 (2012 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: PM2.5 Annual 2012 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name... -
Federal
US EPA Nonattainment Areas and Designations - Download Package
U.S. Environmental Protection Agency —
This downloadable data package contains the following state level layers: Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010... -
Federal
NOAA/WDS Paleoclimatology - Payette, S., Lac des Indiens, Site 2 (LACIND2) North American Plant Macrofossil Database
National Oceanic and Atmospheric Administration, Department of Commerce —
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for... -
Federal
Great Smoky Mountains National Park Hemlock Dominant and Co-Dominant
Department of the Interior —
This geospatial dataset contains location polygons for all forest types with Eastern Hemlock as a component in Great Smoky Mountains National Park. Showing vegetation...