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The unique Hickory Run Boulder Field has a fascinating geological history.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Hipervinculo Ciencias de la Tierra y Medioambiente
The geology of Gettysburg influenced the outcome of battles during the Battle of Gettysburg. The boulders of Devil's Den were good hiding places.
It is an educational content of CK-12 Foundation (to ac ...
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