1947 Black Hills, South Dakota
‘50 Yellowstone Park, Montana
‘53 Glacier Park, Montana
‘56 International Falls, Minnesota
‘59 Estes Park, Colorado
‘62 Spearfish, South Dakota
‘65 Seeley Lake, Montana
‘68 Colorado Springs, Colorado
1971 Duxbury, Massachusetts
1974 Garfield, Washington
1977 Clear Lake, Iowa
1980 Santa Barbara, California
1983 Kalispell, Montana
1986 Mountain Brook, North Carolina
1989 Walker, Minnesota
1992 Seeley Lake, Montana
1995 Saranac Lake, New York
1998 Wyalusing Park, Wisconsin
2001 Custer, South Dakota
2004 Post Falls, Idaho
2007 Trego, Wisonconsin
2013 Williamstown, Kentucky
2016 Glade Springs, West Virginia
2019 Colorado Springs, Colorado
2022 Portsmouth, New Hampshire
2025 Storm Lake, Iowa