Datasets
-
Mountain Allterrain Biking
These baseline recreational use data will inform planning efforts being undertaken by the Maryland Department of Natural Resources to help inform public access, land... -
Roadway Mile Markers
Point features which represent the locations of mile marker signs along public roadways in the State of Maryland. Roadway Mile Markers data is developed as part of the Highway... -
Chesapeake Bay Silty Sand
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... -
County Boundaries - Detailed
This layer contains detailed outlines of Maryland counties. The Maryland land county boundaries were built using political county boundaries and the National Hydrology Data... -
MD Geological Survey Grabs
Compiled data from MGS sediment grab samples from 1984-2012 (listed in order of ascending FID #) 2007 - These samples were collected using a Van Veen grab sampler. Samples were... -
Coastal and Estuarine Land Conservation Program
The Coastal and Estuarine Land Conservation Program (CELCP) is a nationally-competitive land conservation program through the National Oceanic and Atmospheric Administration... -
Wetlands - Linear - Special State Concern
In Maryland certain wetlands with rare, threatened, endangered species or unique habitat receive special attention. The Code of Maryland Regulations (COMAR) Title 26, Subtitle... -
Urban Areas 2020
For the 2020 Census, an urban area will comprise a densely developed core of census blocks that meet minimum housing unit density requirements, along with adjacent territory... -
Montgomery County Ride On Stops
Layer was created from January 2016 GTFS stop data. -
Frederick County TransIT Routes
This layer displays TransIT shuttles, connectors, and Meet-The-MARC routes. All routes contain variations when applicable. Routes have been symbolized. Shapefiles were created... -
Bottom Classification 2002 Shoal Field 1
USACE, Maryland Geological Survey (MGS), Minerals Management Service (MMS), and academic scientists have studied the seafloor and shoals of the Maryland offshore study area in... -
Coastal Bays Mussels
The Sensitive Areas Ribbed Mussel dataset shows areas within Maryland's Coastal Bays that are significant for Ribbed Mussel populations. This data set delineates potential... -
County Boundaries
Polygon features which represent the political boundary of each county in the State of Maryland. The Maryland Political County Boundaries were developed using USGS Topo Quads,... -
Sand Volume Estimates
Volumetric estimations for Fenwick, Weaver, & Isle of Wight shoals used vibracore data collected in 1992 & 1997, volumes were calculated in 2000 (Conkwright, Williams... -
Forest Conservation Act Easements
The Forest Conservation Act of 1991 requires units of local government with planning and zoning authority to establish and implement local forest conservation programs, and... -
Motorized Boating
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... -
Rural Areas
The Federal Housing Enterprises Financial Safety and Soundness Act of 1992 establishes a duty for Fannie Mae and Freddie Mac (the Enterprises) to serve the housing needs of very...