Grand Gulf Natural Bridge, Oregon County, Missouri
Photo by Robert Vreeland
NABSQNO 15S-621260-4045220. Grand Gulf Natural Bridge is a waterfall natural bridge eroded through Jefferson City dolomite by Bussell Branch. It is located in Grand Gulf State Park about 6 miles west of Thayer, Missouri. Grand Gulf Natural Bridge appears in the Vreeland catalog as number 14-21, and in the second edition of the Beveridge catalog as part of number 338. Vreeland reports a span of 20 feet.