The natural bridge in Wisconsin's Sauk County has attracted people for thousands of years. Radiocarbon assay and study of the rock and its layers indicate that people were living here from 10,000 to 12,000 years ago when the glaciers began…
Large bluffs are called mesas. Smaller, more abrupt bluffs are called buttes and other more slender, abrupt bluffs are called pinnacles. You can see examples of all three at Mill Bluff State Park.