The Lilly-Orphan Boy Group is a gold, silver, and lead mine located in Powell county, Montana at an elevation of 6,841 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: 6,841 Feet (2,085 Meters)
Commodity: Gold, Silver, Lead
Lat, Long: 46.44278, -112.34083
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.
Lilly-Orphan Boy Group MRDS details
Site Name
Primary: Lilly-Orphan Boy Group
Secondary: Lily-Orphan Boy Group
Secondary: Lily Mine
Secondary: Orphan Boy Mine
Secondary: Twin City Mine
Commodity
Primary: Gold
Primary: Silver
Primary: Lead
Secondary: Zinc
Secondary: Copper
Location
State: Montana
County: Powell
District: Elliston District
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
Type: Surface/Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Boulder Batholith
Alterations
Alteration Type: L
Alteration Text: Quartz Monzonite Altered By Sericitization And Argillization, Hydrothermal
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Analytical Data: TWIN CITY MINE $3.60/TON AU, AG, CU, PB, PRE 1900.
Materials
Ore: Galena
Ore: Sphalerite
Ore: Gold
Gangue: Quartz
Gangue: Tourmaline
Gangue: Pyrite
Comments
Comment (Deposit): THE WORKINGS ARE SAID TO EXPLORE AN EAST TRENDING HIGH-ANGLE VEIN RANGING IN WIDTH FROM 4.0 TO 6.5 FEET
Comment (Location): 1.1 KM S OF NEWMANS CAMP. ; INFO FROM LAND.ST :(1954)
Comment (Workings): WORKINGS DESCRIBED AS HAVING MANY SURFACE PITS AND CUTS (NO DIMENSIONS GIVEN) AND A 180 FOOT VERTICAL SHAFT WITH THREE LEVELS. TWIN CITY MINE IS A SHAFT 85 FT DEEP AND A 21 FT CROSSCUT AT THE BOTTOM, ALL UNDERWATER.
References
Reference (Deposit): MBMG BULL 98, P. 13, 49.
Reference (Deposit): USGS BULL 842, P. 266
Reference (Deposit): USGS BULL 527, P. 78-79
Reference (Deposit): USGS BULL 1151, PL. 1.
Reference (Production): MBMG BULL 98, P. 49.
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
