Pennsylvania Geology
All sorts of content about Pennsylvania geology: its rocks, landforms and deep history.
Geologic Map of Pennsylvania
A 2000 map from the state geological survey, presented here at three sizes.
A 2000 map from the state geological survey, presented here at three sizes.
Pennsylvania Geological Survey
Lots of maps, photos, and a standout geoheritage section. Look in the State Parks section too.
Lots of maps, photos, and a standout geoheritage section. Look in the State Parks section too.
Coal Mining in Pennsylvania
Kimberley and Albrecht Powell, About.com's Pittsburgh Guides, cover this subject thoroughly.
Kimberley and Albrecht Powell, About.com's Pittsburgh Guides, cover this subject thoroughly.
Geologic Maps of Pennsylvania Counties
A collection of maps published in 1885 is presented by the Penn State geology library.
A collection of maps published in 1885 is presented by the Penn State geology library.
Geologic Quadrangle Maps of Pennsylvania
Map 61, a huge atlas of geologic maps, is online at the state geological survey site.
Map 61, a huge atlas of geologic maps, is online at the state geological survey site.
Outstanding Scenic Geological Features of Pennsylvania
Randy Newcomer's huge labor of love covers most of the state.
Randy Newcomer's huge labor of love covers most of the state.
Bucks County: Ringing Rocks Park
Native son David Hanauer visits this enigmatic boulder field and its surrounding forest.
Native son David Hanauer visits this enigmatic boulder field and its surrounding forest.
Geologic History of Central Pennsylvania
Presented by Edward Cotter of Bucknell University.
Presented by Edward Cotter of Bucknell University.
Central Pennsylvania: One-Week Field Course
Designed by teacher Tricia Schafebook for a college group, the complete instructions will work for you too.
Designed by teacher Tricia Schafebook for a college group, the complete instructions will work for you too.
Philadelphia: Friends of the Wissahickon
Supporters of Fairmount Park describe the intriguing geology of the park on this page.
Supporters of Fairmount Park describe the intriguing geology of the park on this page.
Philadelphia: Notable Geological Features
Descriptions from the Philadelphia Geological Society.
Descriptions from the Philadelphia Geological Society.
Pittsburgh: Geological History of Pittsburgh
Lots of photos and insight presented by the University of Pittsburgh.
Lots of photos and insight presented by the University of Pittsburgh.
Pittsburgh Geological Society
PGS has regular meetings and also sells field trip guidebooks.
PGS has regular meetings and also sells field trip guidebooks.
Titusville & the Pennsylvania Oil Heritage Region
Kimbberley and Albrecht Powell About.com's Guides to Pittsburgh, introduce this historic region.
Kimbberley and Albrecht Powell About.com's Guides to Pittsburgh, introduce this historic region.
Drake's Oil Well
Links for the first oil well in the United States, west of Pittsburgh, collected by the University of Akron library.
Links for the first oil well in the United States, west of Pittsburgh, collected by the University of Akron library.
Pennsylvania Campgrounds
About.com's David Sweet guides you to the best outdoor places to stay.
About.com's David Sweet guides you to the best outdoor places to stay.
Pennsylvania Maps
About.com's Matt Rosenberg helps get you oriented.
About.com's Matt Rosenberg helps get you oriented.