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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: 56 | Catalog Last Checked: August 01, 2026 at 04:42 AM -
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: 20 | Catalog Last Checked: August 02, 2026 at 05:32 PM -
Continuous water-temperature data were collected at multiple restoration sites along the Middle Fork and mainstem Willamette Rivers between Jasper and Newberg, Oregon, to support effectiveness...
Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: August 01, 2026 at 06:04 AM -
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: August 01, 2026 at 05:03 AM -
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: August 01, 2026 at 06:04 AM -
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: 11 | Catalog Last Checked: August 01, 2026 at 04:09 AM -
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: August 02, 2026 at 05:29 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: 10 | Catalog Last Checked: August 01, 2026 at 05:34 AM -
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: 9 | Catalog Last Checked: August 01, 2026 at 04:00 AM -
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: August 01, 2026 at 03:58 AM -
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: 8 | Catalog Last Checked: August 02, 2026 at 05:31 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: 8 | Catalog Last Checked: August 02, 2026 at 05:30 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: 8 | Catalog Last Checked: August 25, 2026 at 10:57 PM -
The Long Island Sound Study developed these digital data from 1:100,000-scale National Oceanic & Atmospheric Administration (NOAA) and United States Geological Survey (USGS) maps as a general...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 02, 2026 at 05:26 PM -
Water. The dataset contains polygons representing planimetric waterbodies, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 03, 2026 at 02:40 AM -
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: 5 | Catalog Last Checked: August 03, 2026 at 12:54 AM -
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: August 01, 2026 at 04:06 AM -
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: 5 | Catalog Last Checked: August 01, 2026 at 03:19 AM -
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: 5 | Catalog Last Checked: August 02, 2026 at 05:28 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: August 01, 2026 at 03:54 AM
