Juneau/Adams County Chapter

No Ice Age Trail segments currently exist in Adams County due to route location uncertainties.

ADAMS COUNTY
During the Wisconsin Glaciation, the Green Bay Lobe covered the eastern one-third of Adams County. Johnstown Moraine marks this glaciation, with a vast outwash plain to the west. The remainder of the county was a giant lake in front of the ice referred to by geologists as Glacial Lake Wisconsin. A number of islands existed in this extinct lake and are now scenic, sandstone buttes. Roche-A-Cri, Ship Rock, Spring Bluff, Quincy Bluff and Rattlesnake Mound are examples of these castelated (castle-like) buttes. Glacial Lake Wisconsin drained catastrophically when the Green Bay Lobe melted back from the Baraboo Hills. Force from this draining dramatically carved the sandstone at the Wisconsin Dells.