Found 113 datasets matching filters.
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A shapefile of 311 undersea features from all major oceans and seas has been created as an aid for retrieving georeferenced information resources. Version 1.1 of the data set also includes a...
Search relevance: 1.00 | Views last month: 23 | Published on: 2026-03-03 -
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 water drainage...
Search relevance: 1.00 | Views last month: 14 | Published on: 2026-03-03 -
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography Dataset (NHD),...
Search relevance: 1.00 | Views last month: 8 | Published on: 2026-03-03 -
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D Hydrography Program. The...
Search relevance: 1.00 | Views last month: 5 | Published on: 2026-01-27 -
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D Hydrography Program. The...
Search relevance: 1.00 | Views last month: 4 | Published on: 2026-02-28 -
The dataset is a feature class showing the boundaries of 517 groundwater basins and subbasins as defined by the California Department of Water Resources as last modified by the Basin Boundary...
Search relevance: 1.00 | Views last month: 3 | Published on: 2025-07-28 -
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D Hydrography Program. The...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-02-28 -
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-27 -
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-27 -
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D Hydrography Program. The...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-02-28 -
The dataset accompanies Figures 2–4 of Matchett and Fleskes (2018) and therein the subject data are referenced as "Table A1". Data summarize peak abundance (km2) of Central Valley waterbird...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
Reliable estimates of the magnitude and frequency of floods are an important part of the framework for hydraulic-structure design and flood-plain management. Annual peak flows measured at U.S....
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
The GEOnet Names Server (GNS) provides access to the National Geospatial-Intelligence Agency's (NGA) and the U.S. Board on Geographic Names' (BGN) database of geographic feature names. The...
Search relevance: 1.00 | Views last month: 2 | Published on: 2025-12-19 -
This dataset consists of digitized 1:24,000-scale polylines and polygons representing hydrographic areas for the Walker River basin, California and Nevada.
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
This U.S. Geological Survey data release contains data for Smith and Mason Valleys, California and Nevada, from the 2009 publication: Lopes, T.J.,and Allander, K.K., 2009, Hydrologic Setting and...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27 -
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27 -
In cooperation with the Georgia Department of Transportation, the U.S. Geological Survey (USGS) has prepared geospatial layers representing the locations of USGS streamgages, other weather...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
