The Bear Fight Center, 22 Fiddlers Road, P.O. Box 667, Winthrop, WA 98862
University of California, Department of Earth and Space Sciences, Los Angeles, CA 90095, ; The Bear Fight Center, 22 Fiddlers Road, P.O. Box 667, Winthrop, WA 98862
The Bear Fight Center, 22 Fiddlers Road, P.O. Box 667, Winthrop, WA 98862
University of Washington, Department of Eaarth and Space Sciences, Seattle, WA 98195