Search datasets
-
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: 15 | 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 (SWSHED12) is a statewide digital watershed file. It was created primarily for state and...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This dataset provides the Tier II catchments delineated for the most downstream Tier II segment. This...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 06:49 PM -
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: 6 | 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. A subset of watersheds created for the Blue Infrastructure Project (BI) based on the DNR 12 digit...
Search relevance: 1.00 | Views last month: 5 | 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 data layer shows the locations of NOAA tide gauges in Maryland. Knowledge of the timing and strength...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Polygon boundaries of lakes (generalized shape) in Maryland. Last Updated: Feature Service Layer Link:...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:48 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. In Maryland certain wetlands with rare - threatened - endangered species or unique habitat receive...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:48 PM -
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. Shoreline Situation Reports (SSR) is intended to assist planners - managers - and regulators in decisions...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The digital segmented network based on watershed boundaries - ERF1-2 - includes enhancements to the...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
This file (SWSHED12) is a statewide digital watershed file. It was created primarily for state and federal agency use. The watersheds define Strahler (Strahler 1952 p. 1120) third order stream...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:47 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Line features of rivers and streams (detailed shape) in Maryland. Last Updated: Feature Service Layer...
Search relevance: 1.00 | Views last month: 4 | 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. The intent of this dataset is for it to be used to produce maps and provide a spatial reference for all...
Search relevance: 1.00 | Views last month: 4 | 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. Although the State of Maryland has no natural lakes - it has an abundance of created lakes and ponds...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:51 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The Blue Infrastructure study area and extent of inventory data was defined as the 16 coastal zone...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:51 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. To quantify rates of change (erosion or accretion) along coastal and estuarine shorelines in Maryland - ...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. Shoreline Situation Reports (SSR) is intended to assist planners - managers - and regulators in decisions...
Search relevance: 1.00 | Views last month: 3 | 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. In 2000 - the Maryland Geological Survey (MGS) was awarded a Coastal Zone Management grant to complete...
Search relevance: 1.00 | Views last month: 3 | 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. The Maryland Department of Natural resources began updating the National Wetlands Inventory (NWI) mapping...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:51 PM
