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SOMEWHERE ABOVE US (WHTM) — Starting this month, the U.S. Geological Survey will begin conducting low-level flights with airplanes and helicopters over parts of Pennsylvania-including the Midstate.

The 4 vols. of 1886 paged continuously. Several plates and maps in pockets. Atlases accompany 1885; 1886, pt.3-4. J. Peter Lesley, state geologist. First report of progress in the anthracite coal ...

Part of the Pennsylvania State University and a division of the Penn State University Libraries and Scholarly Communications, Penn State University Press serves the University community, the citizens ...

The Cooperative National Geologic Map offers a complete and detailed look at the bedrock and fault systems of the continental United States. The first geological map of the United States was published ...

The Brinkerhoff Geology Library supports students, faculty, and researchers with a focused collection of geological literature, maps, and data resources. It provides a quiet study environment and ...