Search datasets
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This file (SWSUB8) is a statewide digital watershed file. It depicts the State with 138 separate watersheds each with an 8-digit numeric code. The file was created primarily for State and Federal...
Search relevance: 263.79 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
This file (SWSUB8) is a statewide digital watershed file. It depicts the State with 138 separate watersheds each with an 8-digit numeric code. The file was created primarily for State and Federal...
Search relevance: 263.79 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file (SWSUB8) is a statewide digital watershed file. It depicts the State with 138 separate...
Search relevance: 238.67 | Views last month: 15 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
This dataset is the digital hydrologic unit boundary layer for the 8-digit subwatershed boundaries for the conterminous United States. This dataset is intended to be used with the following two...
Search relevance: 193.86 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 08:00 PM -
Hydrologic unit boundaries define the aerial extent of surface water drainage to a point. Hydrologic units through four levels were created in the 1970's and have been used extensively throughout...
Search relevance: 124.10 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
Hydrologic unit boundaries define the aerial extent of surface water drainage to a point. Hydrologic units through four levels were created in the 1970's and have been used extensively throughout...
Search relevance: 124.10 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:49 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Hydrologic unit boundaries define the aerial extent of surface water drainage to a point. Hydrologic...
Search relevance: 120.10 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:48 PM -
Polygon geometry with attributes displaying digital elevation model (DEM) delineated watershed boundaries ranging from hydrologic unit code (HUC) 8 digit to 16 digit. The attribute data includes...
Search relevance: 69.68 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:27 PM -
Layer created using Maryland Department of Natural Resources' 8-Digit Watersheds and Marlyland Geologic Survey's Physiographic Province data. MDNR 8-Digit Watershed file divides the state into 138...
Search relevance: 68.88 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
Layer created using Maryland Department of Natural Resources' 8-Digit Watersheds and Marlyland Geologic Survey's Physiographic Province data. MDNR 8-Digit Watershed file divides the state into 138...
Search relevance: 68.27 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
This dataset consists of a personal geodatabase containing several vector datasets. This database contains the information needed to link the HUCs together so a watershed may be delineated that...
Search relevance: 67.73 | Views last month: 2 | Catalog Last Checked: October 14, 2026 at 06:28 AM -
The U.S. Geological Survey (USGS), in cooperation with the Puerto Rico Environmental Quality Board, has compiled a series of geospatial datasets for Puerto Rico to be implemented into the USGS...
Search relevance: 64.31 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:37 PM -
This dataset consists of a personal geodatabase containing several vector datasets. These datasets may be used with the ArcHydro Tools, developed by ESRI in partnership with the U.S. Geological...
Search relevance: 63.48 | Views last month: 1 | Catalog Last Checked: October 14, 2026 at 04:50 AM -
These datasets consist of a workspace (folder) containing a collection of gridded datasets plus a personal geodatabase containing several vector datasets. These datasets are designed to be used...
Search relevance: 58.90 | Views last month: 1 | Catalog Last Checked: October 29, 2026 at 07:12 AM -
These datasets each consist of a workspace (folder) containing a collection of gridded datasets plus a personal geodatabase containing several vector datasets. These datasets are designed to be...
Search relevance: 56.63 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:42 PM -
In cooperation with the South Carolina Department of Transportation, the U.S. Geological Survey (USGS) updated the foundational geospatial layers for the South Carolina StreamStats web application...
Search relevance: 56.16 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:22 PM -
The U.S. Geological Survey collected groundwater samples from 67 domestic wells and 1 spring used for domestic supply in Placer, El Dorado, Amador, and Calaveras Counties, California in 2016-2017....
Search relevance: 55.49 | Views last month: 11 | Catalog Last Checked: September 10, 2026 at 10:02 PM -
The U.S. Geological Survey (USGS), in cooperation with the Puerto Rico Environmental Quality Board, has compiled a series of geospatial datasets for Puerto Rico to be implemented into the USGS...
Search relevance: 54.36 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:26 PM -
Geomorphometry for Streams and Floodplains in the Chesapeake and Delaware Watersheds was generated as part of the project Quantifying Floodplain Ecological Processes and Ecosystem Services in the...
Search relevance: 53.21 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:39 PM -
The U.S. Geological Survey (USGS), in cooperation with the Puerto Rico Environmental Quality Board, has compiled a series of geospatial datasets for Puerto Rico to be implemented into the USGS...
Search relevance: 52.29 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:29 PM
