- Ticklish Rock
Ticklish Rock is an unusual
sandstone rock formation. located in Shrewsbury Township, Sullivan County,Pennsylvania . The formation, which stands at the edge of a steepcliff and resembles an uprighthammer , consists of a large horizontal block, 3 feet high, 8 feet long, and 6 feet wide (0.9 x 2.4 x 1.8 m), balanced upon a thin, 18 x 30 in (46 x 76 cm) pedestal.Ticklish Rock is part of Pennsylvania's
Catskill Formation , which was formed during theDevonian era. The outcrop itself is the result of more recent unevenweathering , which removed all but the pedestal from under the block.LOCATION: From U.S. Route 220, 5 miles north of Picture Rocks at Glen Mawr, up Rock Run 2 miles to Rock Run Church, on the left fork 2.3 miles to a house, and then up the path to the top of the ridge.
REMARKS: A block of flat-lying, brown and green sandstone (Catskill Formation, Devonian age), 3 by 8 feet in cross section, 6 feet thick, resting on a pedestal that is 18 by 30 inches. The outcrop is on the rim of the Allegheny Ridge; an excellent example of differential weathering.
REFERENCE: Pennsylvania Department of Internal Affairs (1939), Ticklish Rock - One of State's curious formations, Pennsylvania Department of Internal Affairs Monthly Bulletin 7, no. 11, p. 3-4.
http://www.lat-long.com/ShowDetail-43539-Pennsylvania-Ticklish_Rock.html
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