1. U.S. Geological Survey Alaska Science Center 4210 University Drive Anchorage AK 99508 USA
2. Yukon Department of Environment Fish and Wildlife Branch P. O. Box 2703 Whitehorse YT Y1A 2C6 Canada
3. Yukon Department of Environment Fish and Wildlife Branch P. O. Box 5429 Haines Junction YT Y0B 1L0 Canada
4. P. O. Box 11226 Whitehorse YT Y1A 6N4 Canada
5. U.S. National Park Service Wrangell‐St. Elias National Park and Preserve, P. O. Box 439, Copper Center, AK 99573 USA
6. Canadian Wildlife Service 91782 Alaska Highway Whitehorse YT Y1A 5B7 Canada