Newman Tunnel

The Newman Tunnel is a silver, lead, and zinc mine located in Pitkin county, Colorado at an elevation of 8,159 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: Newman Tunnel
Secondary: Claims: La Salle
Secondary: Denver
Secondary: Harrisburg
Secondary: Bijou
Secondary: Keystone
Secondary: St. Paul

Commodity

Primary: Silver
Primary: Lead
Primary: Zinc

Location

State: Colorado
County: Pitkin
District: Aspen (Roaring Fork) District

Land Status

Land ownership: Private
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: Fred Leaver And Associates
Home Office: Aspen, Co.
Years: 1926 -

Production

Year: 1924
Description: Ap_Grade: ^15 Oz/Ton Ag, 5% Pb, 8% Fe, 1% S
Year: 1922
Description: Ap_Grade: ^12 Oz/Ton Ag, 7% Pb
Year: 1921
Description: Ap_Grade: ^20 Oz/Ton Ag, 6% Pb, 6% Fe, 1% S
Year: 1917
Material type: ORE
Description: Ap_Grade: ^6 Oz/Ton Ag, 4% Pb (Dump Ore)
Year: 1926
Description: Ap_Grade: ^10 Oz/Ton Ag, 6% Pb, 4% Fe
Year: 1923
Description: Ap_Grade: ^12 Oz/Ton Ag, 5% Pb
Year: 1919
Material type: ORE
Description: Ap_Grade: ^(Crude Ore) 23.6 Oz/Ton Ag, 7.5% Pb

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1926
Discovery Year: 1881
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Sawatch Uplift, Central Colorado Trough, Piceance Basin, White River Uplift, Elk Uplift

Type: L
Description: Silver Fault, Contact Fault, Aspen Mountain Syncline, Tourtellotte Park Uplift

Alterations

Not available

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleocene

Analytical Data

Analytical Data: ORE GRADES RAN 6 TO 23.6 OZ/TON AG AND 4 TO 7.5% PB

Materials

Not available

Comments

Comment (Location): IN UPPER ASPEN MTN AREA, NEAR MOUTH OF KENO GULCH AT WEST BASE OF WEST ASPEN MTN. ELEV AND LAT-LONG FROM BRYANT (1972) ; INFO FROM LAND.ST :(1980)

Comment (Production): PARTIAL PRODUCTION RECORD. FIGURES FOR 1920 AND 1925 NOT REPORTED. TONNAGES FOR 1921-26 REPORTED AS CRUDE ORE

Comment (Workings): ONE TUNNEL DRIVEN GENERALLY EASTWARD APPROX ONE MILE. FIRST INCLINE IS 900 FT HIGH AT 62 DEG; SECOND INCLINE IS 300 FT HIGH AT 60 DEG; THIRD INCLINE IS 1150 FT HIGH AT 53 DEG.

Comment (Deposit): EXACT HEADING AND LENGTH OF TUNNEL UNKNOWN, BUT IF DRIVEN SE, MINE PROBABLY DEVELOPED OXIDIZED ORE NEAR AXIS OF ASPEN MTN SYNCLINE PROBABLY ON CONTACT AND SILVER FAULTS.

References

Reference (Deposit): SPURR, J. E., 1898, GEOLOGY OF THE ASPEN DISTRICT, COLORADO: USGS MON. 31

Reference (Deposit): BRYANT, BRUCE, 1971, GEOLOGIC MAP OF THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO: USGS MAP GQ-933.

Reference (Deposit): BRYANT, BRUCE, 1972, MAP SHOWING MINES, PROSPECTS, AND AREAS OF SIGNIFICANT SILVER, LEAD, AND ZINC PRODUCTION IN THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO: USGS MAP I-785-D

Reference (Deposit): BLM MINERAL SURVEYS MS 1601, 1602, 2047, 4279

Reference (Production): COLO, DIV. MINES ANN. OPERATOR REPTS.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.