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State
GNIS
State of Oregon —
The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board... -
Federal
Compilation of Geospatial Data (GIS) for the Mineral Industries and Related Infrastructure of Africa
Department of the Interior —
This geodatabase reflects the U.S. Geological Survey’s (USGS) ongoing commitment to its mission of understanding the nature and distribution of global mineral... -
Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
Federal
Depth grids of the flood-inundation maps for the St. Joseph River at Elkhart, Indiana
Department of the Interior —
Digital flood-inundation maps for a 6.6-mile reach of the St. Joseph River at Elkhart, Indiana were created by the U.S. Geological Survey (USGS) in cooperation with... -
Federal
Concentrations of Per- and Polyfluoroalkyl Substances (PFAS) and Other Chemical Constituents for Groundwater and Surface Water Samples on Western Cape Cod, Massachusetts, 2014-2019 (ver. 1.1, November 2025)
Department of the Interior —
Groundwater, surface water, and associated quality assurance samples were collected downgradient of an abandoned fire training area and wastewater infiltration beds... -
Federal
Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection NGDA
Department of the Interior —
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and... -
Federal
Microplastics data collected from streams in the northeastern United States, 2017-2018
Department of the Interior —
These data were collected to characterize the quantity and quality of microplastic particles found in 17 streams in the northeastern United States, from New York to... -
Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
Federal
Commercial Phosphorus Fertilizer Purchased
U.S. Environmental Protection Agency —
Amounts of fertilizer P2O5 purchased by states in individual years 2003, 2005, 2007, 2009 and 2011, and the % change in average amounts purchased per year from... -
Federal
BLM Natl AIM Riparian and Wetland Indicators Hub
Department of the Interior —
This feature class includes monitoring data collected nationally to understand the status, condition, and trend of resources on BLM lands. Data are collected in... -
Federal
Geodatabase of the datasets that represent the five vertical subunits of the Coastal Lowlands aquifer system, Alabama, Florida, Louisiana, Mississippi, and Texas
Department of the Interior —
This geodatabase contains spatial datasets that represent the Coastal Lowlands aquifer system in the States of Alabama, Florida, Louisiana, and Texas. Included are:... -
Federal
BLM ID Recreation Area Poly
Department of the Interior —
The content of this data represents areas in Idaho managed for recreational use. These locations may include campgrounds, OHV designated areas, natural areas, or day... -
Federal
MODFLOW 6 proof-of-concept groundwater model for the Mekong River Basin between Phnom Penh, Cambodia and Cao Lanh, Vietnam
Department of the Interior —
A proof-of-concept MODFLOW 6 groundwater model was developed to represent the bedrock, delta, and alluvially-deposited aquifers underlying the Mekong River Basin... -
Federal
Map of Arsenic concentrations in groundwater of the United States
Department of the Interior —
The map graphic image at https://www.sciencebase.gov/catalog/file/get/63140561d34e36012efa2b7f?name=arsenic_map.png illustrates arsenic values, in micrograms per... -
Federal
Estimated annual agricultural pesticide use by major crop or crop group for states of the conterminous United States, 1992-2019 (including preliminary estimates for 2018-19)
Department of the Interior —
This data release provides state-level estimates of annual agricultural use of pesticide compounds by major crop or crop group for states in the conterminous United... -
Federal
Water chemistry data for samples collected at groundwater sites in the Placerita Oil Field study area, June 2018–November 2018, Los Angeles County, California
Department of the Interior —
The California State Water Resources Control Board (State Water Board) initiated the Oil and Gas Regional Monitoring Program (RMP) to assess effects of oil and gas... -
Federal
Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands
Department of the Interior —
This map layer contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands, portrayed as polygons.... -
Federal
Snake River Plain Basin-fill aquifer system
Department of the Interior —
This data set represents the extent of the Snake River Plain aquifer system, which includes both the basaltic and basin-fill aquifers. This dataset does not represent... -
Federal
Per- and polyfluoroalkyl substances (PFAS) results in tapwater samples, in select areas within the United States, beginning 2023 (ver. 2.0, June 2025)
Department of the Interior —
This data release provides concentration results for per- and polyfluoroalkyl substances (PFAS) collected by volunteer community members, in tapwater samples from 84... -
Federal
1:1,000,000-scale hydrographic areas and flow systems for the Great Basin carbonate and alluvial aquifer system of Nevada, Utah, and parts of adjacent states
Department of the Interior —
This dataset was created in support of a U.S. Geological Survey (USGS) study focusing on groundwater resources in the Great Basin carbonate and alluvial aquifer...