Deer Creek (Maryland)

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Deer Creek is a 52.9-mile-long (85.1 km)[1] river in Maryland that flows through the scenic areas of Harford County and empties into the Susquehanna River, roughly halfway between the Interstate 95 bridge and Conowingo Dam. Its watershed area is 171 square miles (440 km2).[2] Its watershed area in MD (excluding water) is 145 square miles (380 km2), with 3% impervious surface in 1994.[3] It serves as a divider between the agricultural and urban/suburban areas of Harford County.

Deer Creek in 2005

Deer Creek rises in Shrewsbury in York County, Pennsylvania, and flows southeast, soon entering Maryland. It cuts across the northeastern corner of Baltimore County and into Harford County, where it runs through Rocks State Park, Palmer State Park, and Susquehanna State Park, passing north of the Bel Air area.

The only dam on Deer Creek, the Wilson Mill Dam, is located along Glenville Road in Harford County. A Denil (baffle) fish ladder was built beside the dam in 2000, re-opening approximately 25 miles of spawning habitat to several anadromous fish species.

Deer Creek supported the last known population of the Maryland darter, the only endemic vertebrate in Maryland [3]. The creek is commonly used for recreation in the summer months.

The Deer Creek Bridge, Stewartstown Railroad carries the Stewartstown Railroad over Deer Creek in Hopewell Township and Shrewsbury Township, Pennsylvania.[4]


  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-04-05 at WebCite, accessed August 8, 2011
  2. ^ Deer Creek Watershed Restoration Action Strategy, Harford County Dept. of Planning and Zoning, 2007.[1], accessed June 13, 2012
  3. ^ Deer Creek, MD Surf your watershed, Watershed profile. [2], accessed June 13, 2012
  4. ^ "National Historic Landmarks & National Register of Historic Places in Pennsylvania" (Searchable database). CRGIS: Cultural Resources Geographic Information System. Note: This includes Thomas N. Shaffer (June 1992). "National Register of Historic Places Inventory Nomination Form: Deer Creek Bridge, Stewartstown Railroad" (PDF). Archived from the original (PDF) on 2012-06-13. Retrieved 2011-12-08.

Coordinates: 39°37′34.98″N 76°18′38″W / 39.6263833°N 76.31056°W / 39.6263833; -76.31056