Old Man of the Dalles of the St. Croix and bridge over the river, 1920.

Devil’s Chair, Dalles of the St. Croix, 1910.

George Henry Hazzard, 1889.

Log Jam at Taylors Falls, 1886.

The Dalles of the St. Croix River seen from the Wisconsin bank, July 2, 2009.

1939 swinging bridge over St. Louis River, Jay Cooke State Park, ca. 1950.

African American Civilian Conservation Corps fire fighters, northern Minnesota, ca. 1933. Photographed by the St. Paul Dispatch.

Workers at the Whitewater State Park CCC camp, ca. 1930s.

Civilian Conservation Corps camp, Sibley State Park, ca. 1930s.

Barracks at the Cut Foot Sioux camp, F-14, CCC Company 707 at Dear River, ca. 1938.