Carderock is a cliff band that lies in a peaceful hardwood forest setting just outside of Washington D.C. along the east side of the Patomac River. The setting is beautiful and pleasant for spectators. Routes are all toproped from tree anchors above the cliff line. To reach the base of the wall scramble down to the gully to the trail that skirts along the river. Herbie's Area is the furthest section of rock upstream. There are a few good routes and the historical Herbie's Horror