The Hirz Mountain is a iron mine located in Shasta county, California at an elevation of 1,499 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
Elevation: 1,499 Feet (457 Meters)
Commodity: Iron
Lat, Long: 40.9025, -122.24250
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.
Hirz Mountain MRDS details
Site Name
Primary: Hirz Mountain
Secondary: Jennings Group
Commodity
Primary: Iron
Secondary: Copper
Location
State: California
County: Shasta
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Southern Pacific Land Co.
Production
Year: 1961
Material type: ORE
Description: Ap_Grade: ^60% Fe
Year: 1958
Material type: FE
Description: Ap_Grade: ^60.3%
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENTICULAR
Structure
Type: L
Description: Fault Seperating Nosoni Fm. From Mccloud Limestone, Trends N-Ne
Alterations
Not available
Rocks
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Magnetite
Ore: Hematite
Gangue: Epidote
Gangue: Garnet
Comments
Comment (Production): REPORTED LOW IN PHOSPHORUS AND SULFUR
Comment (Workings): 1903 NUMBER OF OPEN CUTS AND SHORT ADITS WERE DUG ON 11 CLAIMS. U.S. GEOLOGICAL SURVEY CONDUCTED A MAGNETOMETER SURVEY OF AN AREA NEAR SEC. 5, 6, 7, AND 8; SOME BULLDOZER CUTS.
Comment (Reserve-Resource): SECOND MAGNETOMETER SURVEY IN 1961 OR 1962 REVEALED A THIRD AREA OF POTENTIAL ORE, WEST OF OPEN PIT. ASSAYS FROM THREE AREAS AVERAGED .001% SULFUR, SLIGHTLY MORE P2O5 AND .02% TIO2. ESTIMATIONS RANGED FROM 260,000 TONS PER 100 FT. TO A "FEW" HUNDRED THOUSAND TONS.
Comment (Location): UTM EST. LAND STATUS VALUE CALCULATED 7-94 USING GIS OVERLAY ANALYSIS WITH USFS LAND OWNERSHIP BOUNDARIES, 1:126,720 SCALE.
Comment (Deposit): VARIED LENGTHS AND WIDTHS. POOR EXPOSURES AND RELATIVELY WEAK MAGNETIC ANOMALIES INDICATE TWO PRINCIPAL AREAS OF IRON MINERALIZATION ABOUT 1200 FT. APART IN NE 1/4 SEC. 7 AND NW 1/4 SEC. 8, AT 1700 AND 1300 FT. ELEVATIONS.
Comment (Geology): PROPERTY UNDER LAIN BY MCCLOUD LIMESTONE AND TUFFACEOUS SEDIMENTS AND BASALTIC LAND ANDESITIC FLOWS OF THE NOSONI FORMATION. THE TWO UNITS ARE SEPERATED BY A FAULT AND AN IRREGULARLY SHAPED INTRUSIVE MAFIC QTZ-DIORITE. THE NOSONI METASEDIMENTS GENERALLY DIP 30 TO 60 NE, ONE EXPOSURE OF LIMESTONE DIPS 35SE.
References
Reference (Deposit): EGENHOFF, E.L., 1948; BIBLIOGRAPHY OF THE IRON-ORE RESOURCES OF CA; IRON RESOURCES OF CA. BULL. 129, DIV. OF MINES, P.
Reference (Deposit): LAMEY, C.A., 1948; SHASTA AND CALIFORNIA IRON-ORE DEPOSITS SHASTA COUNTY; DIV. OF MINES BULL. 129, PART K, P. 139-164.
Reference (Deposit): LYDON, P.A. AND O'BRIEN, J.C., 1974: MINES AND MINERAL RESOURCES OF SHASTA COUNTY; CA. DIV. OF MINES AND GEOLOGY COUNTY REPT. 6, P. 61-63
Reference (Production): LYDON & O'BRIEN, 1974
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.
