Hanging Rock (Upper Merion Township, Pennsylvania)
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Hanging Rock
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Hanging Rock, 1917
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| Location | 1144 S. Gulph Rd., Gulph Mills, Upper Merion Township, Pennsylvania |
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| Coordinates | 40°3′55″N 75°20′31″W / 40.06528°N 75.34194°WCoordinates: 40°3′55″N 75°20′31″W / 40.06528°N 75.34194°W |
| Area | less than one acre |
| Built | 1924 |
| NRHP reference # | 97001251 |
| Added to NRHP | December 24, 1997 |
Hanging Rock, also known as Overhanging Rock, is a historic natural feature located in Gulph Mills, Upper Merion Township, Montgomery County, Pennsylvania. It is a large natural outcropping of shale that protrudes approximately eight feet over the roadway. The roadway, Pennsylvania Route 320 (Gulph Road), was laid out as a public highway in 1711-1712. The road was traveled by General George Washington and the Continental Army into Valley Forge for the winter encampment of 1777-1778. The rock was dedicated as a memorial to that march by the Valley Forge Historical Society in 1924.
It was listed on the National Register of Historic Places in 1997.
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