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Big Buck prospect (Munson group No. 1), Gozem Peak, Trinity Mts, Klamath Mts, Trinity Co., California, USA

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A Mn occurrence/prospect located in the SE¼ sec. 4, T1S, R8E, HM, (sec. 2, T37N, R6W, MDM per MRDS file #10214844), 3.2 km (2.0 miles) ENE of Gozem Peak, near Highland Lake and the Shasta County line (located on the Long Gulch Trail, ½ mile N of the Forest Glen-Hayfork Road, 1,600 feet W of the Manganese claim), on National Forest land (located claim). Discovered 1941. Owned by Edwin Lowry, California (1974). MRDS database stated accuracy for this location is 1,000 meters.

Mineralization is a Mn deposit hosted in chert. The ore body strikes N40W and dips 15SW at a width of 6.1 meters and a length of 9.14 meters. The outcrop of manganese chert is 20 feet wide and 30 feet long. Cherty shale and greenstone are exposed to the NE and NW. Serpentine is exposed in a gully to the SE. The ore is partially oxidized bementite and neotocite (?). Bementite is partly coarsely crystalline, in tabular crystals up to ½ inch in diameter, with thin black oxide coatings. Local rocks include Paleozoic marine rocks, undivided, unit 9 (Western Klamath Mountains) and/or Ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).

Workings include surface operations.

Analytical data results: Average grade 10% or less Mn.

Mineral List

2 entries listed. 2 valid minerals.

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.


Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 195.

Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 306.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033670, 10190343 and 10214844.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0061050011.

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