1. Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
2. U.S. Department of Agriculture Forest Service, Dorena Genetic Resource Center, 34963 Shoreview Drive, Cottage Grove, OR 97424, U.S.A.
3. Independent Consultant, Box 774, Coleman, AB, T0K 0M0, Canada
4. Parks Canada, Waterton Lakes National Park, Alberta, T0K 2M0, Canada
5. Alberta Forestry and Parks, Government of Alberta, Edmonton, T6H 5T6, Canada