Wisconsin’s geologic outcrops
Beginning in 1976, geologists at the Survey prepared over 100 descriptions of outcrops from around the state. These outcrops showed important or typical geologic formations, features, and characteristics. Their locations are pinned on the map below. Green pins have photos; blue pins do not. Click on a pin for access to the outcrop descriptions (PDFs).
View Geologic Outcrops of Wisconsin Map in a larger map