The Penn is a copper mine located in Calaveras county, California at an elevation of 499 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

Name: Penn  

State:  California

County:  Calaveras

Elevation: 499 Feet (152 Meters)

Commodity: Copper

Lat, Long: 38.23, -120.87330

Map: View on Google Maps

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.

Satelite image of the Penn

Penn MRDS details

Site Name

Primary: Penn
Secondary: Campo Seco
Secondary: Constellation
Secondary: Happy Jack
Secondary: Hecla
Secondary: Little Satellite
Secondary: Meteor
Secondary: Satellite
Secondary: Hinkcley
Secondary: West Constellation
Secondary: Penn Chemical Works
Secondary: Penn Mine
Secondary: Blue Jay
Secondary: Copper Hill


Primary: Copper
Tertiary: Gold
Tertiary: Lead
Tertiary: Silver
Tertiary: Zinc


State: California
County: Calaveras

Land Status

Not available


Not available


Not available


Not available


Not available


Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Years of Production:
Significant: N
Deposit Size: M


General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada

Mineral Deposit Model

Not available


Not available


Not available


Not available


Not available

Analytical Data

Not available


Not available


Not available


Reference (Deposit): CALIF. DIV. MINES AND GEOL. BULLETIN 144, 1948, P. 222.

Reference (Deposit): CALIF. JOUR. MINES AND GEOL. V. 53, 1957, P. 435.

Reference (Deposit): CALIF. DIV. MINES AND GEOL. COUNTY REPORT 2, 1962, P. 133.

California Gold

Where to Find Gold in California

"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.