2024 Eatonville, WA (Mt. Rainier): Pack Forest - University of Washington
2020 Rockaway Beach, OR: NW Regional ESD & Multnomah ESD
2019 Hancock, NH Nature's Classroom at Sargent Conference Center
2018 Potosi, MO: YMCA of the Ozarks & Parkway School District
2017 Saratoga, CA: Walden West Outdoor Science School
2016 North Bend, WA: Highline Public Schools - Waskowitz Outdoor Education Center
2015 Bailey, CO: Jefferson County - Windy Peak Outdoor Lab School
2014 Salem, OR: Multnomah ESD & NW Regional ESD
2013 Calgary, Alberta, CANADA: Camp Kiwanis
2012 Potosi, MO: YMCA Of the Ozarks & Parkway School District
2011 North Bend, WA: Waskowitz Outdoor Education Center
2010 Lake Tahoe, NV: Sierra Nevada Journeys
2009 Evergreen, CO: Jefferson County - Mount Evans Outdoor Lab School
2008 Portland, OR: Multnomah ESD & NW Regional ESD
2007 Potosi, MO: YMCA Of the Ozarks & Parkway School District
2006 Vashon Island, WA: Camp Sealth & Waskowitz Outdoor Education Center
2005 Calgary, Alberta, CANADA: Camp Kiwanis
2004 Evergreen, CO: Jefferson County - Mount Evans Outdoor Lab School
2003 San Diego, CA: Cuyamaca Outdoor School
2002 North Bend, WA: Waskowitz Outdoor Education Center
2001 Salem, OR: Multnomah Education Service District
2000 Potosi, MO: Parkway School District
1999 Bailey, CO: Jefferson County - Windy Peak Outdoor Lab School
1998 Brackendale, British Columbia, CANADA: North Vancouver Outdoor School
1997 Santa Cruz, CA: Santa Cruz County Outdoor Science School
1996 North Bend, WA: Waskowitz Outdoor Education School
1995 Evergreen, CO: Jefferson County Mount Evans Outdoor Lab School
1994 Calgary, Alberta, CA: Calgary Outdoor Education Centre
1993 Portland, OR: Washington / Multnomah County Outdoor Schools
1992 Petaluma, CA: Walker Creek Ranch Science and Conservation School
1991 Campbell River, British Columbia, CANADA: Strathcona Outdoor Education Center
1990 Bailey, CO: Jefferson County - Windy Peak Outdoor Lab School
1989 Sonora, CA: California Outdoor School Administrators
1988 Molalla, OR: Washington / Multnomah County Outdoor Schools
1987 Squamish, British Columbia, CA: North Vancouver Outdoor School
1986 Seattle, WA: Highline School District Outdoor School
1985 Sausalito, CA: Headlands Institute (now Naturebridge)
1984 Evergreen, CO: Jefferson County - Outdoor Education Laboratory School
1983 Corbett, OR: Washington / Multnomah County Outdoor Schools