Curator Roy S. Clarke with Meteorite, by Hofmeister, Richard K, March 8, 1978, Smithsonian Archives - History Div, Curator Roy S. Clarke, Jr., poses with the Old Woman Mountains meteorite. Found by prospectors in 1975 in the Old Woman Mountains in the Needles Resource Area, San Fernando Valley, California. Removing the meteorite from its resting place proved difficult because of the rugged terrain, the weight of the meteorite, and the desert's summer heat. It took the assistance of the U.S. Marine Corps to get the job done. This 6,070 pound meteorite, the second largest ever to have been discovered in the United States, was the subject of research by the Smithsonian for approximately a year before being sent to a museum in California. Now kept in the Desert Discovery Center in Barstow, CA..