Marsh Creek is a 26.6-mile-long (42.8 km) tributary of the Monocacy River in south-central Pennsylvania and north-central Maryland in the United States. Marsh Creek and Rock Creek join below Gettysburg and the Gettysburg Battlefield to form the Monocacy River. The height of land between Marsh and Rock creeks is the site of the Battle of Gettysburg.
There is a little known whitewater section running from Old US Route 15 to Mason Dixon Road featuring some Class III action when the water is high.
 See also
- ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed August 15, 2011
 External links
Coordinates: 39°43′6″N 77°13′38″W / 39.71833°N 77.22722°W