Access Map Services
Frederick County provides access to our published ArcGIS Server Map Services. Please follow this link for more information on access to these services. You can also see our list of published map services at http://webmaps.frederickcountymd.gov/ArcGIS/rest/services/layers.
Download GIS Data
Frederick County offers a free GIS data download service. A list of data layers available for download can be found on our Download GIS Data.