A rock shelter defined: a shallow cave or cavelike area, as one formed by an overhanging cliff or standing rocks. I recently made a trip up to Morgan-Monroe State Forest to hike one of my favorite ...
17hon MSN
These Pennsylvania rocks actually ‘sing’ — and scientists still can’t fully explain why
In Bucks County, Pennsylvania, Ringing Rocks Park features unique diabase boulders that produce bell-like tones when struck. Formed 200 million years ago and fractured by Ice Age freeze-thaw cycles, ...
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