Rocky outlook at Interstate State Park, 2014. Photograph by Minnesota Department of Natural Resources Staff.

Angle Rock at Interstate State Park, 2015. Photograph by Minnesota Department of Natural Resources Staff.

Bluff trail at Interstate State Park, 2015. Photograph by Minnesota Department of Natural Resources Staff.

Spring Trillium at Interstate State Park, 2013. Photograph by Minnesota Department of Natural Resources Staff.

Pothole at Interstate State Park, 2013. Photograph by Minnesota Department of Natural Resources Staff.

St. Croix River, Dalles of the St. Croix. Includes view of Showboat Inn and Interstate Bridge, 1905–1949.

Dalles of the St. Croix, Interstate Park, Minnesota and Wisconsin, 1940.

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.