Nature
3
Mount Davis, 3213 feet above sea level, is the highest point in Pennsylvania. The erosion-resistant sandstone at the surface belongs to the Pottsville group formed about 230 million years ago. These layers of sedimentary rock were pushed up as an upfold 200 million years ago during the upheaval called the Appalachian Revolution.
Hear stories like this as you drive
ExploreHere reads historical markers out loud as you pass them: over 325,000 stories across the US. No account needed.
4.7 · 800+ ratings · Free
FIND IT
Pennsylvania · United States
