This 149-mile section of the Missouri River is the only major portion that has been preserved in a natural and free-flowing state. It is a remarkable float trip for canoers and rafters, and is suitable...[more]
Upper Missouri National Wild and Scenic River
Lewistown Field Office
The main access points on the Marias are at Tiber dam, the Circle Bridge on state Highway 223 between Fort Benton and Chester, and U.S. Highway 87 at Loma. No visitor services are provided on the Marias river.
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