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Inland Waters
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Maryland, United States
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1. Choptank River Heritage Access
2011. ChoptankRiverHeritage.org. Public landings and other river access points to the Choptank River and its tributaries, on Maryland's Eastern Shore.
2. Choptank River Heritage NRHP (National Register of Historic Places)
2011. Maryland Historical Trust (MHT). This map shows NRHP sites in the Mid-Shore counties of Kent, Queen Anne, Caroline, Talbot, and Dorchester, on Maryland's Eastern Shore. Map data wa...
3. Choptank River Heritage Watershed
2010. USDA-NRCS, 1221 College Park Drive, Suite 100, Dover, DE 19904. Shows watershed of the Choptank River and its tributaries, on Maryland's Eastern Shore.
4. Floodplain: Baltimore, Maryland
2014. City of Baltimore, Maryland. Polygon feature representing flood risk as defined by the FEMA Digital Flood Insurance Rate Map database. Last Updated 2014.
5. Major Drainage Basins: Baltimore, Maryland
2012. City of Baltimore, Maryland. Polygon feature representing the major drainage basins within Baltimore City. Last Updated 2008.
6. Maritime Industrial Zoning Overlay District (MIZOD): Baltimore, Maryland
2012. City of Baltimore, Maryland. Maritime Industrial Zoning Overlay District boundaries.
7. National Hydrography Dataset (NHD) Flowline: Potomac
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
8. Snail Sampling points Plummers Island: Pennsylvania
2005. Ryan Evans, Pennsylvania Natural Heritage Program - Pittsburgh office. April 2004 freshwater snail sampling points around Plummer's Island, Montgomery County, Maryland.
9. Water: Baltimore, Maryland
2012. City of Baltimore, Maryland. Polygon feature representing photogrammetrically captured hydrographic information, including lakes, ponds, harbors, waterways, reservoirs, and hid...