NABSQNO 15S-626781-4205860
Pinnacles Bluff Arch, Phelps County, Missouri
Photo by Jay Wilbur
NABSQNO 15S-626781-4205860. Pinnacles Bluff Arch is a buttress natural arch eroded through Gasconade dolomite. It is located about 3 miles east of St. James, Missouri. Pinnacles Bluff Arch appears in the second edition of the Beveridge catalog as number 265. He reports a span of 7 feet.
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