Search datasets
-
This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the conterminous United States. These data delineate the areal extent of wetlands and...
Search relevance: 1.00 | Views last month: 23 | Catalog Last Checked: July 07, 2026 at 08:09 PM -
Land preservation data shows acres preserved by federal, state, and local programs that either acquire land preservation easements or acquire land in fee; data for each program is provided for...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: July 07, 2026 at 08:13 PM -
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Maryland Department of Natural Resources (DNR) manages over 446 - 000 acres of public lands and protected...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 02, 2025 at 04:49 AM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Secretary Salazar announced the Department of the Interior's Smart from the Start"" initiative on...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 14, 2026 at 11:56 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file (SWSHED12) is a statewide digital watershed file. It was created primarily for state and...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 02, 2025 at 04:55 AM -
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: 1.00 | Views last month: 5 | Catalog Last Checked: August 02, 2025 at 04:31 AM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The stream reaches are color coded according to the Combined Index of Biotic Integrity (CIBI) scores of...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 02, 2025 at 05:03 AM -
This data set depicts the boundaries of Wild Areas managed by the Missouri Department of Natural Resources, Division of State Parks. This data was derived by digitizing United States Geological...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: July 07, 2026 at 09:33 PM -
These baseline recreational use data will inform planning efforts being undertaken by the Maryland Department of Natural Resources to help inform public access, land acquisition, future planning...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: July 07, 2026 at 08:09 PM -
This is a data table, in comma-delimited, ASCII format, which contains information about selected physical properties, particularly grain size, of 4,255 surficial sediment samples from the...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: July 07, 2026 at 08:11 PM -
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. These data map hub - corridor - and gap elements within the green infrastructure. The Green Infrastructure...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 14, 2026 at 11:55 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer contains the Province-level physiographic subdivisions of Maryland in ArcGIS format. The...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2025 at 04:08 AM -
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. These datasets exist in raster and vector formats. The vector format was created from the SHA Shoreline file...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2025 at 04:45 AM -
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: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2025 at 04:00 AM -
This data set contains Missouri's 2016 Section 303(d) Listed Waters - Rivers and Streams and is a list of certain impaired waters in the State of Missouri. The list is a requirement of the Federal...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: July 07, 2026 at 09:33 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: 1.00 | Views last month: 2 | Catalog Last Checked: July 07, 2026 at 08:12 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file of geologic unit polygons is for educational use. There are known errors and omissions. The...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 02, 2025 at 04:09 AM -
The Maryland coastal zone is comprised of the land, water and subaqueous land between the territorial limits of Maryland in the Chesapeake Bay, Atlantic Coastal Bays and the Atlantic Ocean, as...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: July 07, 2026 at 08:11 PM -
Maryland, through its Coastal Zone Management (CZM) Program, is collecting information on how the public uses the Chesapeake Bay waters and adjacent lands. These baseline data will inform planning...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: July 07, 2026 at 08:11 PM
