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.
Sequence of structural stages of the Alleghany orogeny at the Bear Valley Strip Mine, Shamokin, Pennsylvania
Published:January 01, 1987
Richard P. Nickelsen, 1987. "Sequence of structural stages of the Alleghany orogeny at the Bear Valley Strip Mine, Shamokin, Pennsylvania", Northeastern Section of the Geological Society of America, David C. Roy
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The abandoned Bear Valley Strip Mine is in the Western Middle Field of the Pennsylvania Anthracite Region in the Valleyand Ridge Province (Fig. 1). The intersection of lat. 40°45'50„Nand long. 76°35'45„ W marks the locality on the Shamokin, Pennsylvania 7½-minute Quadrangle map (1969 edition, photorevised 1975). The mine can be reached from the junction of Pennsylvania 61 and 125 in Shamokin as follows. Proceed southon Pennsylvania 125 for 1.4 mi (2.2 km) to the curve where Pennsylvania 125 turns sharply left; at this curve, continue straight in a southwest direction for 1.45 mi (2.3 km) to the endof the paved road; proceed uphill on a rough dirt road for 0.3 mi (0.5 km) to where the road becomes level and wide; park at atrail/road to the left and walk downhill 0.15 mi (0.24 km) southwest and then south to the “Entrance Road„ shown on Figure 2. The site is on property owned by the Reading Anthracite Company; therefore, you are trespassing on private property. However, professional and educational groups have been grantedfree access for the past 25 years, but no liability is assumed by thecompany. Strip mine highwalls with loose rock pose a hazard, and one should exercise caution to avoid injury by falling orbeing fallen upon. Collecting specimens of in-place bedrock isprohibited.