Color image of a 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.

Surface outcrop

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

Surgical clamp designed by Owen Wangensteen

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.

Scan of a survey of lower mounds at Dayton's Bluff done in 1866.

Survey of lower mounds at Dayton's Bluff

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.

Scan of Mr. T.H. Lewis' survey of the mounds on Dayton's Bluff in 1882.

Survey of mounds on Dayton's Bluff

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.

Survey of the confluence of the Minnesota and Mississippi Rivers at Fort Snelling at Bdóte in Survey of Upper Mississippi River (page 14).

Survey of the confluence of the Minnesota and Mississippi Rivers

Survey of the confluence of the Minnesota and Mississippi Rivers at Fort Snelling at Bdóte in Survey of Upper Mississippi River (page 14).

Survey of the confluence of the St. Croix and Mississippi Rivers at Point Douglas in Survey of Upper Mississippi River (page 16).

Survey of the confluence of the St. Croix and Mississippi Rivers

Survey of the confluence of the St. Croix and Mississippi Rivers at Point Douglas in Survey of Upper Mississippi River (page 16).

Survivors members of Company F, Sixth Minnesota Volunteer Infantry at the home of Captain Horace B. Wilson at Red Wing.

Survivors members of Company F, Sixth Minnesota Volunteer Infantry at the home of Captain Horace B. Wilson at Red Wing

Members of Company F, Sixth Minnesota Volunteer Infantry at the home of Captain Horace B. Wilson at Red Wing, 1897.

Survivors of the First Minnesota at Gettysburg

Survivors of the First Minnesota at Gettysburg

Survivors of the First Minnesota at Gettysburg, c.1913. Photograph by W. H. Tipton.

Susan B. Anthony

Susan B. Anthony

Susan B. Anthony, ca. 1855.

Photographic portrait of Susan Hazeltine, the first schoolteacher in Carver County, c.1855. Photograph Collection, Carver County Historical Society, Waconia.

Susan Hazeltine

Photographic portrait of Susan Hazeltine, the first schoolteacher in Carver County, c.1855. Photograph Collection, Carver County Historical Society, Waconia.

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