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Geographic Information Systems (GIS)

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Downloadable Layers

These .ZIP files are made available for use in various professional desktop software packages capable of reading ESRI’s shapefile format. These files do not contain anything that is not already available to view in the free GIS Web Map. Beware that these are large files which may take some time to download.

Map Changes, Updates, and Ordering Information

maps Your feedback is very important! If you find any Mapping Applications not functioning properly, please contact St. Mary's County at our feedback page to inform us of any problems. To order additional GIS data.