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Bartley Mine, Alta, Dutch Flat District (Towle District), Placer Co., California, USA

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Latitude & Longitude (WGS84): 39° 13' 24'' North , 120° 49' 13'' West
Latitude & Longitude (decimal): 39.2233333333, -120.820277778
A former Au occurrence/mine located in sec. 26, T16N, R10E, MDM, 2.0 km (1.3 miles) NNW of Alta and 2.4 km (1.5 miles) NE of Dutch Flat, on the E canyon wall of the Bear River, W of Spaulding Point, on private land. MRDS database stated accuracy for this location is 500 meters.

Local rocks include Undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided).

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The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Lindgren, Waldemar (1900), Description of the Colfax sheet, California: USGS Geological Atlas, Colfax folio (Folio No. 66), 10 pp.

Waring, Clarence A. (1917), Placer County: Report 15 of the State Mineralogist, California State Mining Bureau (Report 15): 15: 353.

Averill, C.V. (1946), Placer mining for gold in California: California State Division of Mines and Geology Bulletin 135, 336 p.: 272.

Logan, Clarence August (1936), Gold Mines of Placer County: California Journal of Mines and Geology, California Division Mines (Report 32): 32(1): 57, 86.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10164459.

U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060610451.

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