The 360º Panographic Photography of Edward Huff.
Purgatory Chasm, Middletown, RI
Purgatory Chasm: a natural chasm, or cleft, in the cliffs along Sachuest Bay. The opening in the conglomerate rock ledge is about 10 feet wide, 50 feet deep, and 120 feet long. Purgatory is of geological importance because the chasm is a good example of erosion due to wave action and because of the conglomerate beds, of "stretched pebbles and boulders", which were flattened and elongated by compression millions of years ago. Initials and dates inscribed in a layer of sandstone date from the 18th century.
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