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• Schultz, C. H., editor, The Geology of Pennsylvania,
Special Publication 1, 888 pp., Pennsylvania Geological Survey and Pittsburg
Geological Society, Harrisburg and Pittsburg, 1999.
This comprehensive volume covers all facets of the
state’s geology: stratigraphy, tectonics, geologic history, mineral resources,
and more. Although out of print, it can be found in some libraries (such as
Bryn Mawr College’s Collier Science Library).
• Van Diver, B. B., Roadside Geology of Pennsylvania, 352
pp., Mountain Press, Missoula, Montana, 1990.
• Geyer, A. R., and W. H. Bolles, Outstanding Scenic
Features of Pennsylvania, Environmental Geology Report 7, 508 pp., Bureau of
Topographic and Geologic Survey, Harrisburg, 1979.
This book lists some of the geologic sites of interest
in the state. Directions and maps are provided, but descriptions are brief.
Features in the Philadelphia region include hills, cliffs, boulder fields, and
marshes.
• The Pennsylvania Topographic and Geologic Survey offers
numerous publications and maps; visit their web site.
• Newman, B., L. Newman, Hikes Around Philadelphia, 200
pp., Temple University Press, Philadelphia, 1997.
Directions, hiking trails, and other information for
some of the geologic features on this site are
provided in this book.
Last revised: 20 March 2002