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March 8, 2019
VALLEY FORGE, Pa. — The national park on the site where George Washington and the struggling Continental Army endured a tough winter during the American Revolution boasts a new feature that's a couple of hundred million years old — dozens of fossilized dinosaur footprints discovered on rocks used to pave a section of hiking trail.
The trace fossils, as they are known, are scattered along a winding trail at Valley Forge National Historical Park, on slabs purchased in 2011 from a nearby commercial quarry.
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