A cross section through the tip of the Blue Mountain anticline at a roadcut along U.S. Route 322/22 in PA. pic.twitter.com/UMOG3MZjPz
— Scott Drzyzga (@MapScience) March 18, 2018
via Twitter https://twitter.com/MapScience
March 18, 2018 at 05:32AM
A cross section through the tip of the Blue Mountain anticline at a roadcut along U.S. Route 322/22 in PA. pic.twitter.com/UMOG3MZjPz
— Scott Drzyzga (@MapScience) March 18, 2018
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