Chaboya - Hillsdale

The Chaboya - Hillsdale is a mercury mine located in Santa Clara county, California at an elevation of 249 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Chaboya - Hillsdale
Secondary: Sheboya
Secondary: San Juan Bautista
Secondary: Chapman

Commodity

Primary: Mercury

Location

State: California
County: Santa Clara

Land Status

Not available

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: Manuel T. Azevedo

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1847
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges

Mineral Deposit Model

Not available

Orebody

Form: LENSES, PODS

Structure

Type: L
Description: Serpentine - Sandstone Contact

Alterations

Alteration Type: L
Alteration Text: Silica Carbonate Alteration Of Serpentine

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Cinnabar

Comments

Comment (Location): LOCATED AT CENTER OF MINES

Comment (Workings): MOSTLY CAVED

References

Reference (Deposit): 5) DAVIS, F.F. AND JENNING, C.W., 1954, MINES AND MINERAL RESOURCES OF SANTA CLARA COUNTY, CALIF.: CJMG, V. 50, P. 342-354

Reference (Deposit): 6) FRANKE, H.A., 1930, SANTA CLARA COUNTY, MINING IN CALIFORNIA: REPT. OF THE STATE MINERALOGIST, V. 26, P. 26-33

Reference (Production): USBM UNPUB DATA

Reference (Deposit): HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

Reference (Deposit): BAILEY, E. H., USGS, PERSONAL FILES

Reference (Deposit): RANSOME, A. L. AND KELLOGG, J. L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 35, P. 353 - 486

Reference (Deposit): BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

California Gold

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.