Fifteenmile Creek (Potomac River)
Fifteenmile Creek is a 19.9-mile-long (32.0 km)tributary stream of the Potomac River in the U.S. states of Maryland and Pennsylvania. The creek enters the Potomac River through Maryland's Green Ridge State Forest.[1]
Coordinates: 39°40′47″N 78°27′28″W / 39.67972°N 78.45778°W
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