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This photograph shows the back side of the Ottertail Historical Marker.

This photograph shows the interpretive sign at Ottertail City Historical Marker Wayside.

This photograph shows the Ottertail Historical Marker.

This photograph shows the Otter Tail City Historical Marker site on State Highway 78.

This photograph the Ottertail City Historical Marker in Ottertail, Otter Tail County, Minnesota. It was erected by the Minnesota Department of Highways in 1948.

This photograph shows the building and terrace at Oak Lake Rest Area. Oak Lake appears in the backgrounds.

This photograph shows the parking area at Oak Lake Rest Area circa 1973.

This photograph shows the building at Oak Lake Rest Area, circa 1973.

This photograph shows the Oak Lake Rest Area site from above, circa 1973.

This photograph shows the ADA-compliant picnic table at Oak Lake Rest Area.