Great Northern depot at Yankton, South Dakota, undated. Photograph by Robert Johnston, from the Norm Keyes Collection.

Great Northern depot at Yankton, South Dakota, undated. Relocated from its original site - used as a museum, photograph by Norm Keyes, from the Norm Keyes Collection.

Great Northern depot at Yankton, South Dakota, undated. Relocated from its original site - used as a museum, photograph by Norm Keyes, from the Norm Keyes Collection.

Great Northern depot at Yankton, South Dakota, undated. Relocated from its original site - used as a museum, photograph by Norm Keyes, from the Norm Keyes Collection.

Great Northern depot at Yankton, South Dakota, undated. Relocated from its original site - used as a museum, photograph by Norm Keyes, from the Norm Keyes Collection.

Great Northern depot at Yankton, South Dakota, undated. Relocated from its original site - used as a museum, photograph by Norm Keyes, from the Norm Keyes Collection.

Yankton, South Dakota Great Northern depot looking northeast March 1970. Photograph by Charles W. Bohi.