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Federal
Annual California Sea Otter Census: 2019 Census Summary Shapefile
Department of the Interior —
The GIS shapefile Census_sum_2019 provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra... -
Federal
San Francisco Bay-Delta bathymetric/topographic digital elevation model(DEM)
Department of the Interior —
A high-resolution (10-meter per pixel) digital elevation model (DEM) was created for the Sacramento-San Joaquin Delta using both bathymetry and topography data. This... -
Federal
Annual California Sea Otter Census—1985-2014 Spring Census Summary
Department of the Interior —
This dataset represents an archived record of annual California sea otter surveys from 1985-2014. Survey procedures involve counting animals during the "spring... -
Federal
Knox Group: geospatial geologic structural datasets in Tennessee
Department of the Interior —
The Knox Dolomite is currently recognized as the Knox Group. The Mascot Dolomite, the upper unit of the Knox Group, is dolomite and dolomitic limestone of Lower-... -
Federal
Preliminary digital data for a 3-layer geologic model of the conterminous United States using land surface, top of bedrock, and top of basement (ver. 1.1, April 2025)
Department of the Interior —
This digital dataset compiles a 3-layer geologic model of the conterminous United States by mapping the altitude of three surfaces: land surface, top of bedrock, and... -
Federal
Chattanooga Shale: geospatial geologic structural datasets in Tennessee
Department of the Interior —
The Chattanooga Shale is relatively thin and generally continuous across the state, making it an important geologic horizon. In Tennessee, the Chattanooga Shale crops... -
Federal
Data for statewide assessment of New York's karst aquifers with an inventory of closed-depression and focused-recharge features
Department of the Interior —
The New York State Departments of Environmental Conservation and Health are concerned about groundwater contamination in the carbonate-bedrock aquifers with the... -
Federal
Mean high water (MHW) shorelines along the coast of California used to calculated shoreline change from 1998 to 2016
Department of the Interior —
This dataset contains mean high water (MHW) shorelines for sandy beaches along the coast of California for the years 1998/2002, 2015, and 2016. The MHW elevation in... -
Federal
Aquifer framework datasets used to represent the Arbuckle-Simpson aquifer, Oklahoma
Department of the Interior —
The Arbuckle-Simpson aquifer covers an area of about 800 square miles in the Arbuckle Mountains and Arbuckle Plains of South-Central Oklahoma. The aquifer is in the... -
Federal
Mahogany Ledge Digital Structure Contour Lines of the Piceance Basin, Colorado
Department of the Interior —
The Mahogany ledge structure contour lines were needed to perform overburden calculations in the Piceance Basin, Colorado as part of a 2009 National Oil Shale... -
Federal
Geodatabase of the datasets used to represent the four aquifer subunits of the Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, and Wisconsin
Department of the Interior —
This geodatabase includes spatial datasets that represent the Cambrian-Ordovician aquifer system in the States of Wisconsin, Michigan, Minnesota, Iowa, and Illinois.... -
Federal
Historic Depth-to-Water, San Joaquin Valley, California, 1910
Department of the Interior —
Mendenhall and others (1916) published depth-to-water data compiled in 1910 for all known wells in the San Joaquin Valley, California. Data for the 3,429 wells having... -
Federal
Digital database of structure contour and isopach maps of multiple subsurface units, Michigan and Illinois Basins, USA
Department of the Interior —
This digital data release presents contour data from multiple subsurface geologic horizons as presented in previously published summaries of the regional subsurface... -
Federal
Estimated Thickness of the Lower Miocene 2 Sequence, Gulf Coast
Department of the Interior —
The thickness contours were created using biostratigraphic data in the Paleo-Data, Inc., Tenroc Regional Geologic Database. The depths of the microfossil locations... -
Federal
Annual California Sea Otter Census: 2018 Census Summary Shapefile
Department of the Interior —
The GIS shapefile "Census summary of southern sea otter 2018" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the... -
Federal
Census_sum_15
Department of the Interior —
The GIS layer "Census_sum_15" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra... -
Federal
Digital database of the previously published bedrock geologic map showing thickness of overlying Quaternary deposits, Grand Island quadrangle, Nebraska and Kansas
Department of the Interior —
This digital data release contains geospatial data for the 1:250,000 scale geologic map of the Grand Island 1 degree by 2 degree quadrangle, Nebraska, originally... -
Federal
Contours--Offshore of Santa Barbara, California
Department of the Interior —
This part of DS 781 presents data for the bathymetric contours for several seafloor maps of the Offshore of Santa Barbara map area, California. The vector data file... -
Federal
Airborne geophysical survey: Columbus ARMS
Department of the Interior —
Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. In the earlier days of surveying,... -
Federal
Geospatial geologic structural datasets, Chattanooga Shale, Wells Creek Dolomite, and Knox Group, Tennessee, USA
Department of the Interior —
Data about the top and bottom altitude, depth from land surface and/or the thickness of three geologic units in Tennessee were converted into geospatial format for...