1. BLM Wyoming State Office, 5353 Yellowstone Road, Cheyenne, Wyoming 82009, USA
2. Dept. of Geology & Geophysics, University of Utah, Salt Lake City, Utah 84112 USA
3. KCSI Aerial Patrol, Inc., 1105 Douglas St. Suite 200, Bakersfield California 93308 USA
4. Geospatial Section, National Operations Center, Denver Federal Center, P.O. Box 25047, Denver, Colorado 80225-0047, USA