Bird Effigy, Cassville Bluffs Natural Area

A large bird effigy a wingspan of 270 ft. flies down a bluff slope edge high above the Mississippi River at the Cassville Bluffs Natural Area. It was documented in the late 19th century by T.H. Lewis who did not mention any other associated mounds.

The natural area is located at the end of Sand Lake Road, off of Highway 133, southeast of Cassville, Wisconsin.