Links of interest:
Pennsylvania Geological Survey
Nittany Mineralogical Society, Inc.
Pennsylvania Council of Professional Geologists
Geosciences Department, Penn State University
Department of Geology, Juniata College
West Virginia Geological Survey
Maryland Geological Survey
Prospectors and Developers Association of Canada
State geologic surveys
State geologic
al
surveys
U
niversity geology departments
Other Links
Field Conference of Pennsylvania Geologists
Department of Geological and Atmospheric Sciences, Iowa State University
Department of Earth Science, University of Northern Iowa