NABSQNO 15S-511964-4243401
Gravois Mills Natural Bridge, Morgan County, Missouri
Photo by Jay Wilbur
NABSQNO 15S-511964-4243401. Gravois Mills Natural Bridge is an old cave natural arch eroded through Gasconade dolomite. It is located near Jacobs Cave, Missouri on private land. At one time there was a hand painted sign near this arch that read "Natural Bridge For Sale", but that was long ago. Gravois Mills Natural Bridge appears in the Vreeland catalog as number 14-28, and in the second edition of the Beveridge catalog as number 295. Both report a span of 25 feet and a height of 16 feet.
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