-
Water Quality Data 432 recent views
Water quality data for the Refuge collected by volunteers collected once every two weeks: Turbidity, pH, Dissolved oxygen (DO), Salinity & Temperature. Sampling will occur... -
1 meter Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection NGDA 181 recent views
This is a tiled collection of the 3D Elevation Program (3DEP) and is one meter resolution. The 3DEP data holdings serve as the elevation layer of The National Map, and provide... -
USGS Water-Quality Data for the Nation - National Water Information System (NWIS) 170 recent views
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the Virgin Islands,... -
FWS Critical Habitat for Threatened and Endangered Species Dataset NGDA 149 recent views
When a species is proposed for listing as endangered or threatened under the Endangered Species Act, the U.S. Fish and Wildlife Service must consider whether there are areas of... -
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA 107 recent views
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 surface... -
Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection NGDA 83 recent views
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It... -
Map of Arsenic concentrations in groundwater of the United States 82 recent views
The map graphic image at https://www.sciencebase.gov/catalog/file/get/63140561d34e36012efa2b7f?name=arsenic_map.png illustrates arsenic values, in micrograms per liter, for... -
BLM National SMA Surface Management Agency Area Polygons NGDA 76 recent views
The Surface Management Agency (SMA) Geographic Information System (GIS) dataset depicts Federal land for the United States and classifies this land by its active Federal surface... -
USGS National Structures Dataset - USGS National Map Downloadable Data Collection NGDA 70 recent views
USGS Structures from The National Map (TNM) consists of data to include the name, function, location, and other core information and characteristics of selected manmade... -
USGS US Topo Map Collection 64 recent views
Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, boundaries,... -
Combined wildfire datasets for the United States and certain territories, 1800s-Present 61 recent views
First, we would like to thank the wildland fire advisory group. Their wisdom and guidance helped us build the dataset as it currently exists. This dataset is comprised of two... -
Outer Continental Shelf Active Renewable Energy Leases NGDA 58 recent views
MetadataThis data set shows the extent of offshore wind energy leases in the U.S. Outer Continental Shelf managed by the Bureau of Ocean Energy Management. State leases are... -
NCRN Bird Monitoring Data 2007 - 2017 54 recent views
These data represent the first ten years of data collection (2007-2016) on avian abundance/density and distribution in the National Capital Region as part of the Inventory and... -
BOEM Seismic Water Bottom Anomalies - Gulf of Mexico - Gulf of Mexico NAD27 NGDA 53 recent views
Since 1998, geoscientists at the Bureau of Ocean Energy Management (BOEM) have identified and mapped over 31,000 water bottom (seafloor) acoustic amplitude anomalies in the deep... -
Outer Continental Shelf Oil and Natural Gas Wells - Gulf of Mexico Region NAD 27 NGDA 53 recent views
This data set contains surface locations for oil and gas wells located in the Gulf of Mexico federal waters. Note: Wells are being added or modified continuously; obtaining... -
Outer Continental Shelf Oil and Natural Gas Wells - Gulf of Mexico Region NAD 27 NGDA 50 recent views
This data set contains surface locations for oil and gas wells located in the Gulf of Mexico federal waters. Note: Wells are being added or modified continuously; obtaining... -
An example data set for exploration of Multiple Linear Regression 44 recent views
This data set contains example data for exploration of the theory of regression based regionalization. The 90th percentile of annual maximum streamflow is provided as an example... -
BLM National Public Land Survey System Polygons NGDA 44 recent views
This dataset represents the GIS Version of the Public Land Survey System including both rectangular and non-rectangular surveys. The primary source for the data is cadastral...