A circa 1970 photograph of a two boom drill rig, rubber tired, diesel powered Jumbo with pneumatic drills. A man is standing next to it and is about half its height. Note: this photo is from Safford, Arizona.
Mining Miner Underground Mines Mining equipment Safford, Arizona Jumbo Drill rig
Thomas, Fred
circa 1970
Safford, Arizona
2004.19.7