The Minnesota Historical Society contracted with the University of Minnesota's Evolutionary Anthropology Lab in 2011 to scan a portion of the petroglyphs using zero impact white light. The resulting 3-D images form a unique collection that helps preserve the story of the petroglyphs. Legacy funds allowed staff to catalog the 2,117 images and make them accessible as master digital files at the historic site and through the Society's Collections Online.
A new website is now available that provides information about the history of the petroglyphs and the various ways they've been interpreted and documented over the years. The images of individual carvings will serve as an archival record, a research and conservation resource and an educational tool.
A research team is assembled at Jeffers Petroglyphs and is charged with gathering together to further the understanding of the people who interacted with the carvings, their history and culture, and the meanings of the carvings. Members are made up of Dakota, Arapahoe and Cheyenne elders, state and university archaeologists, and conservationists.
- The Jeffers Petroglyphs by Kevin L. Callahan, foreword by Alan R. Woolworth, Prairie Smoke Press, Sept. 2001
- Listen to Grandmother Earth by Loris Connolly, Minnesota History, Summer, 1999, p. 322-327.
- Southwestern Minnesota Archaeology: 12,000 years in the Prairie Lake Region by Scott Anﬁnson, Minnesota Historical Society Press, 1997
Rock Ridge Prairie by the DNR