Gary G. Lash, 1987. "Structural and sedimentologic characteristics of the Greenwich slice of the Hamburg klippe: An ancient subduction complex in eastern Pennsylvania", Northeastern Section of the Geological Society of America, David C. Roy
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This site within the Greenwich slice of the Hamburg klippe is located in the northwest comer of the Kutztown 7½-minute Quadrangle (Lash, 1985a) in Berks County, Pennsylvania, and includes two large fault bounded exposures approximately 1000 ft (300 m) apart on Pennsylvania 143 (Fig. 1). The exposures can be reached by proceeding about 4 mi (6 km) north on Pennsylvania 143 from the Lenhartsville exit of U.S. 78. Parking of buses and automobiles is possible at the south end of the northern exposure (Fig. 1) and both exposures are easily accessible by foot from the parking area. Visitors are warned that shoulders on Pennsylvania 143 are narrow and the road is heavily traveled.
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Northeastern Section of the Geological Society of America
One of six volumes generated by each GSA section for the Decade of North American Geology (DNAG) project, this Centennial Field Guide contains descriptions of 100 sites or site clusters representing outstanding geologic locations in Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, New Brunswick, Newfoundland, Nova Scotia, eastern Ontario, Quebec, and Washington, D.C.