• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

Physiography for the Mid-Atlantic Coastal Plain was constructed by standardizing and extrapolating previous physiographic interpretations for areas within and adjacent to the region. For more...

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• Organization: Department of the Interior
• Updated: 2020-06-01T00:00:00Z

Physiography was derived from an attribute field in the ecological subsection mapping. The original physiography linework was adjusted to match the image segmentation edges. Segments in more than...

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• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

This data set is an ArcGIS shapefile depicting land segments in the Chesapeake Bay Watershed and adjacent states of New York, Pennsylvania, Maryland, West Virginia, Delaware, Virginia, North...

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• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

The hydrogeologic framework was developed from a combination of the physiography and the predominant texture of surficial geologic units in the Mid-Atlantic Coastal Plain. It describes the...

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• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

Generalized lithology (rock type) and physiography based on geologic formations were used to characterize hydrgeomorphic regions (HGMR) within the Chesapeake Bay watershed. These HGMRs were used...

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• Organization: Department of the Interior
• Updated: 2023-08-02T00:00:00Z

This tabular data set represents the percent of physiographic provinces compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1)...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2021-04-09

Dataset includes compiled flow/no flow observations from past US EPA probabilistic stream

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• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

This is a polygon coverage of Physiographic Divisions in the conterminous United States. It was automated from Fenneman's 1:7,000,000-scale map, "Physical Divisions of the United States," which is...

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• Organization: Department of the Interior
• Updated: 2011-08-01T00:00:00Z

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common...

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• Organization: Department of Agriculture
• Updated: 2026-02-04

The MLRA Geographic Database was prepared for Agriculture Handbook 296 re-publication and is used to support decisions about regional and national agricultural issues. The database and AH 296 help...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

CO2 and water vapor fluxes and ecosystem characteristics were measured at 24 sites along a 317-km transect from the Arctic coast to the latitudinal treeline in Alaska during the growing seasons of...

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• Organization: State of California
• Updated: 2022-03-18T08:57:29.234Z

This layer contains polygon features of Ecological Units for the state of California as described by ECOMAP (1993) "... mapped based on associations of those biotic and environmental factors that...

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• Organization: Department of the Interior
• Updated: 2024-11-15T00:00:00Z

This data release contains a dataset of geospatial and tabular data used in support of a flood-frequency study of urban streams in Tennessee and parts of Alabama, Georgia, Mississippi, North...

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• Organization: Department of the Interior
• Updated: 2009-11-01T00:00:00Z

This geodatabase contains three (3) rasters, two (2) of which represent landcover for Selawik National Wildlife Refuge and surrounding areas. The third raster contains plot-based ground...

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• Organization: Department of the Interior
• Updated: 2022-09-12T00:00:00Z

This digital elevation model (DEM) for the Northern Atlantic Coastal Plain (NACP) from Long Island New York to northeastern North Carolina represents the elevation of the topographic and...

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• Organization: Department of Energy
• Updated: 2017-07-14T18:57:07Z

This submission contains geospatial (GIS) data on water table gradient and depth, subcrop gravity and magnetic, propsectivity, heat flow, physiographic, boron and BHT for the Southwest New Mexico...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1996-01-01T00:00:00.000+00:00

Bathymetry of Lake Michigan has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more accessible to the public. The...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2013-04-16T00:00:00.000+00:00

Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research,...

• Organization: U.S. Environmental Protection Agency
• Updated: 2012-01-01T00:00:00.000+00:00

Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. The ecoregions of Alaska are a framework for organizing and...

• Organization: U.S. Environmental Protection Agency
• Updated: 2010-05-01T00:00:00.000+00:00

Ecoregions by EPA region were extracted from the seamless national shapefile. Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental...

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