Northwestern Energy - Chamberlain, SD Xcel Energy - Pipestone, MN Northern States Power - Raymond, MN Great River Energy - Otter Tail County, MN Otter Tail Power - Tyler, ND Otter Tail Power - Richland County, ND Otter Tail Power Co. first office Geese and marsh Sidewalk Otter Tail Power - DeSmet, SD Old 7-up sign Southeastern Electric - Viborg, SD Xcel Energy - Turner County, SD Weber Ave. sub site Northern States Power - Turner County, SD Sunset Otter Tail Power - Alice, ND Otter Tail Power - Casselton, ND Central City, NE municipal Otter Tail Power - Grant County, SD North Central Electric - Bottineau County, ND SD School of Mines memorial plaza Otter Tail Power - Sykeston, ND Wessington Springs, SD municipal Northwestern Energy - Beadle County, SD Otter Tail Power - Lake Preston, SD Otter Tail Power - Lake Norden, SD Otter Tail Power - Hammer, SD Otter Tail Power - Veblen, SD Otter Tail Power - Hillhead, SD Otter Tail Power - Roberts County, SD Hecla, SD municipal Hecla, SD municipal Hecla, SD municipal Montana-Dakota Utilities - Leola, SD Montana-Dakota Utilities - Leola, SD Northwestern Energy - Holmquist, SD Abandoned schoolhouse - 2020 Western Area Power Admin - Moody County, SD Otter Tail Power - Trent, SD Montana-Dakota Utilities - Renville County, ND Xcel Energy - Sioux Falls, SD Loveland Water & Power Northern States Power - Rockville, MN