Hansen & Knudsen Claims

The Hansen & Knudsen Claims is a manganese mine located in Humboldt county, Nevada at an elevation of 5,499 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

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: Hansen & Knudsen Claims
Secondary: Topsy Claim 1959
Secondary: Ben Claim?1984

Commodity

Primary: Manganese

Location

State: Nevada
County: Humboldt
District: Golconda District

Land Status

Land ownership: BLM Administrative Area
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

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Year First Production: 1918
Discovery Year: 1918
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

Mineral Deposit Model

Model Name: Replacement Mn

Orebody

Form: BLANKET, LENSES

Structure

Not available

Alterations

Not available

Rocks

Name: Shale
Role: Host
Age Type: Host Rock Unit
Age Young: Pennsylvanian

Name: Shale
Role: Host
Age Type: Host Rock
Age Young: Pennsylvanian

Analytical Data

Analytical Data: 45% MN

Materials

Ore: Psilomelane
Ore: Pyrolusite
Ore: Rhodochrosite
Ore: Rhodonite

Comments

Comment (Deposit): DEPOSITS ARE MINED FROM OPEN CUTS, AND UPON SORTING. THE MATERIAL YIELDS 1 TON ORE PER 4-5 TONS OF MATERIAL. THE SORTED ORE RUNS 45% MN, 10.5% S1O2, AND A LITTLE IRON. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Comment (Geology): LENSLIKE BODIES OF PSILOMELANE AND PYROLUSITE ASSOC. WITH RHODONITE AND RHODOCHROSITE AS LARGE AS 25 FT. IN DIAMETER AND 2 FT. THICK. MANY OTHER LENSES OF OXIDIZED ORE OCCURRED WHICH WERE 10-25 FT. IN DIAMETER, AND 1-2 FT. THICK. UNOXIDIZED LENSES OF MANGANIFEROUS CHERT IN WHICH THE MANGANESE OCCURS AS RHODONITE FORM REPLACEMENT DEPOSITS IN SHALE AND QUARTZITE. THE LARGEST LENSES ARE 50 TO 75 FT. IN DIAMETER AND 6 TO 10 FT. THICK

Comment (Location): MILS DATA PLACES THIS PROPERTY IN THE VICINITY OF THE BEN CLAIM, WHICH WAS EXAMINED IN 1984, AND WHOSE DESCRIPTION- FITS THAT OF TOPSY, HANSEN AND KNUDSEN CLAIMS. USBM RI 5446 A-LSO LOCATES IT IN T35N, R41E.; PREVIOUS QUAD DESIGNATION = GOLDRUN CREEK (1965) 1:24000

Comment (Production): A FEW CARLOADS OF 40% MN ORE MINED BEFORE JUNE 1918.

References

Reference (Deposit): RANSOME, F.L., & BURCHARD, E.F., 1920, CONTRIBUTIONS TO ECONOMIC GEOLOGY, PT. I; U.S.G.S. BULL. 710., PLATE X, P. 238-239

Reference (Deposit): TRENGROVE, R.R., 1959, RECONNAISSANCE OF NEVADA MANGANESE DEPOSITS: U.S.B.M. REPT. INV. 5446., P. 21

Reference (Deposit): USBM, 1983, MILS DATA

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.