Jaspilite-banded iron formation in the Stuntz Bay Road outcrop, Soudan Underground State Park, Soudan, June 10, 2015. Photograph by Wikimedia Commons user James St. John.
Surgical clamp designed by Owen Wangensteen, chief of surgery at the University of Minnesota and used by Dr. Palmer Peterson in his Minneapolis medical practice from 1952 until 1998.
Mr. Hill's survey of lower mounds at Dayton's Bluff done in 1866. Image is from: Winchell, N.H. The Aborigines of Minnesota. St. Paul: The Pioneer Press Company, 1911, 263.
Image of Mr. T.H. Lewis' survey of the mounds on Dayton's Bluff in 1882. Image is from: Winchell, N.H. The Aborigines of Minnesota. St. Paul: The Pioneer Press Company, 1911, 262.
Photographic portrait of Susan Hazeltine, the first schoolteacher in Carver County, c.1855. Photograph Collection, Carver County Historical Society, Waconia.