Holcomb Valley is on the north side of the San Bernardino Mountains just north of Big Bear Lake. Placer deposits were discovered here in 1860 by W. F. Holcomb and were extensively worked for a few years following, mostly by Mexicans. The area has been intermittently prospected ever since. From 1933 to 1941 about 200,000 cubic yards were mined by power shovel, with an average recovery of 38 cents (period values) per yard. The gold-bearing material consists of Recent and older alluvium. There are a number of small lode-gold prospects. The gold occurs in thin shear and fracture zones in granitic rocks or in contacts between carbonate and intrusive rocks.

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.

ⓘ Gold

Mineral List

Mineral list contains entries from the region specified including sub-localities

ⓘ Gold

ⓘ Quartz

2 valid minerals.

Detailed Mineral List:

ⓘ Gold

Formula: Au

Localities: Reported from at least 9 localities in this region.

ⓘ Quartz

Formula: SiO₂

Localities:

Artic Canyon Mine, Holcomb Valley, Holcomb Valley District, San Bernardino Mountains, San Bernardino Co., California, USA
H.O.K. Mine, Holcomb Valley, Holcomb Valley District, San Bernardino Mountains, San Bernardino Co., California, USA
Little Nugget Mine, Holcomb Valley, Holcomb Valley District, San Bernardino Mountains, San Bernardino Co., California, USA
Osborne Mine (Mammoth claim; Olio claim; San Bernardino claim), Holcomb Valley, Holcomb Valley District, San Bernardino Mountains, San Bernardino Co., California, USA
Pocilio Mine (Pocilio claim; Alma), Holcomb Valley, Holcomb Valley District, San Bernardino Mountains, San Bernardino Co., California, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
ⓘ	Gold	1.1.1.1	Au
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO₂ with [4] coordinated Si
ⓘ	Quartz	75.1.3.1	SiO₂

List of minerals for each chemical element

O	Oxygen
O	ⓘ Quartz	SiO₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
Au	Gold
Au	ⓘ Gold	Au

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)

Cloudman, H.C., F.J.H. Merrill & E. Huguenin (1919), San Bernardino County: California Mining Bureau. Report 15: 774-899; […(abstract): Geol. Zentralbl., Band 27: 394]: 798-799 (Holcomb Valley District).

Gray, Clifton Herschel, Jr. (1960), Placer gold in Geology of the San Bernardino Mountains north of Big Bear Lake: California Division of Mines Special Report 65: 51-54 (Holcomb Valley District).

Clark, Wm. B. (1970a) Gold districts of California: California Division Mines & Geology Bulletin 193: 170; 171-172 (Holcomb Valley).

Localities in this Region

USA

California
- San Bernardino Co.
  - San Bernardino Mountains
    - Holcomb Valley District
      - Holcomb Valley
        San Bernardino occurrence
        Star Placer Mine
        Unnamed Au occurrence [2]
        Unnamed Au occurrence [4]
        Unnamed Au occurrence [9]
      - Upper Holcomb Valley
        Little Coyote occurrence
        Money occurrence
        Mosquito occurrence
        Sunburst occurrence
        Unnamed Au occurrence [274]
        Unnamed Au occurrence [281]
        Unnamed Au occurrence [3]
        Unnamed Au occurrence [6]
        Yankee occurrence

Other Regions, Features and Areas containing this locality

North America

Coast MountainsMountain Range

North America PlateTectonic Plate

USA

California
- San Bernardino MountainsMountain Range

This page contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

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