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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: 49 | Catalog Last Checked: September 10, 2026 at 09:17 PM -
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: 23 | Catalog Last Checked: September 10, 2026 at 06:42 PM -
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: 14 | Catalog Last Checked: October 06, 2026 at 11:15 PM -
Continuous water temperature data were collected at multiple sites along the Middle Fork and mainstem Willamette Rivers between Jasper and Newberg, Oregon, to support effectiveness monitoring for...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: September 10, 2026 at 09:36 PM -
Continuous water-temperature data were collected at multiple sites along the Middle Fork and mainstem Willamette Rivers between Jasper and Newberg, Oregon, to support effectiveness monitoring for...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: September 10, 2026 at 10:35 PM -
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: 11 | Catalog Last Checked: October 06, 2026 at 11:15 PM -
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: 11 | Catalog Last Checked: September 10, 2026 at 06:39 PM -
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: 10 | Catalog Last Checked: October 06, 2026 at 11:14 PM -
The Unified Field Studies (UFS), established by the Algae Testbed Public-Private Partnership (ATP3), produced data on the effect of environmental and process conditions on algal growth rates and...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: September 10, 2026 at 05:46 PM -
This FileMaker Pro-based database application was developed by NETN to facilitate lake/pond data collection in the field. The application was designed for an iPad and to compliment the...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: September 10, 2026 at 07:16 PM -
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 | Catalog Last Checked: September 10, 2026 at 08:47 PM -
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the Government...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 07:14 PM -
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the Government...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 07:14 PM -
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California lake, reservoir, and...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 24, 2026 at 08:50 PM -
The National Hydrography Dataset (NHD) High Resolution flowlines were used as a base to provide additional information on the connectivity of the stream network for the hydrographic basins in and...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 08:03 PM -
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: 7 | Catalog Last Checked: October 06, 2026 at 11:15 PM -
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: 6 | Catalog Last Checked: October 06, 2026 at 11:15 PM -
The Unified Field Studies (UFS), established by the Algae Testbed Public-Private Partnership (ATP3), produced data on the effect of environmental and process conditions on algal growth rates and...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 05:46 PM -
See full Data Guide here. Lake Bathymetry describes the water depth for selected reservoirs, lakes, ponds, and coves in Connecticut. It includes depth contours, also called bathymetric contours,...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 06:42 PM -
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the Government...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 07:21 PM
