Conewago Township
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Conewago Township - Sinkholes are common I areas underlain with limestone. This sinkhole is located on the north side of Oxford Ave opposite the Vulcan Materials Quarry. Sinkholes have caused property damage through the limestone regions of Pennsylvania.
Conewago Township - This is the north wall of the Vulcan Materials Quarry, the largest quarry in Adams County. The quarry is extracting limestone and dolomite for road construction, cement and flux material. Try to trace layers of the rock across the picture and you will detect how deformed these rocks are in the Piedmont Lowlands Section. The rocks have been folded and broken by several crustal collisions.

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