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Malone Consolidated placer (Malone Cons.; Optimo Placer Mine), Sweetland, North San Juan District, Nevada Co., California, USA

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Latitude & Longitude (WGS84): 39° 19' 21'' North , 121° 5' 10'' West
Latitude & Longitude (decimal): 39.3224983215, -121.086112976
A reported placer Au occurrence located in sec. 21, T17N, R8E, MDM, 3.7 km (2.3 miles) SE of Sweetland, W of Montezuma Hill and N of Bunker Hill. The property comprises 206. 94 acres. MRDS database stated accuracy for this location is 1,000 meters. Also located in sec. 22, but no evidence of Au - claim only. Peterson, et al shows auriferous gravel in the N½N½ and E½E½ of sec. 22.

Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).

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Logan, Clarence August (1941), Mineral resources of Nevada County, California: California Division Mines (Report 37): 37(3): Pl 3.

Peterson, D.W., Yeend, W.E., Oliver, H.W., and Mattick, R.E. (1968) Tertiary gold-bearing channel gravel in northern Nevada County, California. USGS Circular 566, 22 pp.: figure 2.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031783 & 10285641.

U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060570446.

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