Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Subject Inland Waters Remove constraint Subject: Inland Waters Place Maryland, United States Remove constraint Place: Maryland, United States
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Choptank River Heritage Access

2011. Choptank River Heritage Center (CRHC). Public landings and other river access points to the Choptank River and its tributaries, on Maryland's Eastern Shore.

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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...

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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.

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Floodplain - Effective FEMA Floodplain: Maryland

2016. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Effective Floodplain layer represents the official regulat...

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Floodplain - Preliminary FEMA Floodplain: Maryland

2016. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This layer offers the anticipated floodplain boundaries howeve...

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Floodplain: Baltimore, Maryland

2014. Polygon feature representing flood risk as defined by the FEMA Digital Flood Insurance Rate Map database. Last Updated 2014.

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Floodplain: Baltimore, Maryland

2015. This dataset depicts flood risk areas in the City of Baltimore.

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Floodplain: Harford County, Maryland

2015. The regulatory 100-year floodplain is an area mapped by the Federal Emergency Management Agency based upon the probability of that area flooding fr...

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Gauges - Stream Gauge Locations: Maryland

2016. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. AHPS Shapefile - Observations - a shapefile of river and...

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Gauges - Tide Gauge Locations: Maryland

2016. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer shows the locations of NOAA tide gauges ...

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Hydrology Lines: Harford County, Maryland, 2013

2013. Linear water features. 100' scale photogrammetric mapping compiled Spring 2013.

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Hydrology Polygons: Harford County, Maryland, 2013

2013. Hydrology area features; double line streams, ponds, rivers; 100' scale photogrammetric mapping compiled Spring 2013.

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Major Drainage Basins: Baltimore, Maryland

2012. Polygon feature representing the major drainage basins within Baltimore City. Last Updated 2008.

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Maritime Industrial Zoning Overlay District (MIZOD): Baltimore, Maryland

2012. Maritime Industrial Zoning Overlay District boundaries.

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National Hydrography Dataset (NHD) Flowline: Potomac

2004. United States Geological Survey (USGS)U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...

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Navigable River: Delaware Valley

2016. The DVRPC navigable river layer is a polygon layer representing the extents of the Delaware and Schulykill rivers that are designated for commercia...

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River Crossings: Delaware Valley

2016. Includes highway and rail river crossing inventory for the DVRPC region.The DVRPC Highway River Crossing data layer was developed to identify key b...

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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.

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Stream Health - MD Biological Stream Survey Sites: Maryland

2016. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The MBSS assesses the ecological condition of 1st-4th or...

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Stream Health - Stream Wader Sites volunteer collected: Maryland

2016. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The sample sites are color coded according to the Benthi...