Exposure of Lower Freeport coal on Stony Creek, near trolley bridge, the underlying sandstone is the Butler. Pennsylvania, 1906.
Dates
Date Taken
1906
Summary
Exposure of Lower Freeport coal on Stony Creek, near trolley bridge, the underlying sandstone is the Butler. The Lower Freeport limestone member shows below the coal. Cambria County, Pennsylvania. 1906. Plate 4-A in U.S. Geological Survey. Bulletin 447. 1911.
Summary
Exposure of Lower Freeport coal on Stony Creek, near trolley bridge, the underlying sandstone is the Butler. The Lower Freeport limestone member shows below the coal. Cambria County, Pennsylvania. 1906. Plate 4-A in U.S. Geological Survey. Bulletin 447. 1911.
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