2020: Blue Mountain Community College, Pendleton, Oregon.
2019: June 25-27, Okanagan College, Penticton, British Columbia.
2018- Mount Hood Community College, Gresham, Oregon.
2017- Crater's of the Moon Natl Monument, ID, hosted by the NPS
2016- Hell's Canyon, ID, hosted by Spokane CC
2015- Victoria, BC, hosted by Camosun College & University of Vancouver
2014- Wenatchee, WA, hosted by Wenatchee Valley CC
2013- Coos Bay, OR, hosted by Southwestern Oregon CC
2012- Spokane, WA, hosted by Spokane CC 2011- Malheur Field Station, hosted by Portland State University
2010- Twin Falls, ID, hosted by the College of Southern Idaho
2009- Vancouver, BC, hosted by the University of BC, Vancouver
2008- Yakima, WA, hosted by Yakima Valley CC & Columbia Basin College
2007- Portland, OR, hosted by Portland State Unversity
2006- Bellingham, WA, hosted by Western Washington University
2005- Coos Bay, OR, hosted by Southwestern Oregon CC
2004- Wenatchee, WA, hosted by Wenatchee Valley CC
2003- Juneau, AK, hosted by University of Alaska Southeast
2002- Corvallis, OR, in conjunction w/the Cordilleran Section meeting (GSA)
2001- Bellevue, WA, hosted by Bellevue College
2000- Portland, OR, hosted by Portland State University
1999- Spokane, WA, hosted by Spokane CC