Ha Ha Tonka Natural Bridge, Camden County, Missouri
Photo by Jay Wilbur
NABSQNO 15S-520770-4202979. Ha Ha Tonka Natural Bridge is a waterfall natural bridge eroded through Gasconade dolomite, specifically the Gunter sandstone member. It is located in Ha Ha Tonka State Park near Camdenton, Missouri. In addition to being of special geological interest, this area has had a fascinating history. Ha Ha Tonka Natural Bridge appears in the Vreeland catalog as number 14-26, and in the second edition of the Beveridge catalog as number 339. David Brandt-Erichsen measured the span of this arch using a steel tape and reports a result of 50 feet.