Sign within Savanna Portage State Park, 2018. Photograph by Jon Lurie; used with the permission of Jon Lurie.

Signed photograph of William Gates LeDuc in Washington, D.C., 1905. Given to the Minnesota Historical Society in 1899.

Sigurd F. Olson, 1959.

Sigurd Olson, Tom Savage, and Russell Fridley (left to right) meet at the confluence of the Minnesota and Mississippi Rivers (Bdote) to survey the recently created Fort Snelling State Park.