Hecla, SD municipal Hecla, SD municipal Otter Tail Power - Roberts County, SD Otter Tail Power - Hillhead, SD Otter Tail Power - Veblen, SD Otter Tail Power - Hammer, SD Otter Tail Power - Lake Norden, SD Otter Tail Power - Lake Preston, SD Northwestern Energy - Beadle County, SD Wessington Springs, SD municipal Half a house? 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 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