Agger Rockshelter
Agger Rockshelter is a prehistoric rock shelter located in Stevenstown, in La Crosse County, Wisconsin, United States. The shelter faces west and overlooks a tributary of the Black River. During the 1980s and 1990s the Mississippi Valley Archaeology Center conducted an extensive survey of the Driftless area which led to the discovery of unrecorded rock art.
Birmingham, Robert A. Green, William (2006) The Minnesota archaeologist, Volumes 64-65 Social Science Birmingham, Robert A. Green, William (1987) The Wisconsin archeologist, Volume 68 Social Science
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).