APPROXIMATELY LOCATED IN OR AROUND THE COLUMBUS MARSH MINING DISTRICT; CLAIM MAP; PROPERTY MAP; DRILL HOLE LOCATIONS; T2-3N, R35-37E; SCALE: 1 INCH = 3,000 FEET; COLUMBUS; T. AND G.R.R.; SITE NAME: RAILROAD VALLEY COMPANY, CALM BORAX WORKS, BORAX WORKS, PLACER CLAIMS NOS. 226-263, 265-277; COMMODITY: BORAX, POTASH