1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays polygon landmark features throughout the state. 'Landmark' is the general name given to a cartographic (or locational) land...
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1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays water bodies throughout the state. This category includes lakes, ponds, bays, rivers, reservoirs and other water features. ...
2011. United States. Federal Emergency Management Agency. The flood insurance risk zone layer contains information about the flood hazards for Maryland. These zones are used by the federal Emergency Manage... Federal Emergency Management Agency (FEMA).
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays polygon landmark features throughout the state. 'Landmark' is the general name given to a cartographic (or locational) land...
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays water bodies throughout the state. This category includes lakes, ponds, bays, rivers, reservoirs and other water features. ...