The Montanore is a copper and silver mine located in Lincoln county, Montana.
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
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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.
Montanore MRDS details
Site Name
Primary: Montanore
Secondary: Rock Lake Project
Secondary: Noxon
Commodity
Primary: Copper
Primary: Silver
Tertiary: Lead
Location
State: Montana
County: Lincoln
District: Noxon
Land Status
Land ownership: National Wilderness
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.
Administrative Organization: Cabinet Mountains Wilderness, Kootenai National Forest
Holdings
Type: Minerals Only
Workings
Type: Underground
Ownership
Owner Name: Noranda
Owner Name: Mines Management, Inc.
Percent: 100.0
Home Office: Spokane, Washington
Info Year: 2009
Production
Not available
Deposit
Record Type: Deposit
Operation Category: Prospect
Deposit Type: Revett sediment hosted Cu Ag
Operation Type: Underground
Discovery Year: 1983
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: L
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Model Name: Sediment-hosted Cu, Revett
Orebody
Name: Unnamed zone 1
Form: tabular
Name: Unnamed zone 2
Form: tabular
Structure
Type: L
Structure: Rock Lake Fault
Alterations
Alteration Type: L
Alteration: calcite
Rocks
Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Mesoproterozoic
Age Old: Mesoproterozoic
Analytical Data
Not available
Materials
Ore: Bornite
Ore: Chalcopyrite
Ore: Galena
Comments
Comment (Deposit): SEDIMENT-HOSTED CU, REVETT
Comment (Location): Original political location in record was Lincoln county. However, lat/long plotted in adjacent Sanders county. Original coordinates were: lat/long NAD27 48-4-48N 115-38-24W (48.08 -115.64); UTM N
Comment (Reserve-Resource): From Ristorcelli and Fitch (2005, p. 23-24): Six historic resource estimates were made (Salisbury & Associates Reserves 1987; Regan Reserves 1987; Regan Reserves 1988 (June 24); Saunders Reserves 1990; Saunders Reserves 1994). none of these could be classified utilizing present-day CIM standards. Likely the reason for the considerable change in tons between the 2005 estimate and the previous estimates is that previous estimates included material outside the extralateral rights, which at that time were controlled by the then-operating companies.
Comment (Geology): Extentive discussion of the geology is found on pages 26-34 of Ristorcelli and Fitch (2005). Geologic maps and cross-section figures are included.
Comment (Ownership): The Montanore deposit is patented mineral estate within a wilderness.
Comment (Reserve-Resource): The resource estimate is reported to be prepared in Accordance with Canadian Nation Instrument 43-101 by Mine Development Associates for Mines Management. and was reported filed by Mines Management on March 6, 2006 and is available at www.Sedar.com. I did not find this document at Sedar, so can't verify the numbers. They do look reasonable though.
Comment (Reserve-Resource): The grades for the NI 43-101 data are calculated weighed averages.
References
Reference (Reserve-Resource): Regan, M. D., 1988, untitled memorandum to Montana Reserves, dated June 24, 1988.
Reference (Deposit): Ristorcelli, Steve, and Fitch, David, 2005, Technical Report on the Copper and Silver Resources, Montanore Project, Lincoln and Sanders Counties, Montana, prepared for Mines Management, Inc.: Reno, NV, MINE DEVELOPMENT ASSOCIATES, MINE ENGINEERING SERVICES, October, 14, 2005, 151 p.
Reference (Reserve-Resource): Saunders, D., 1990, Montanore Ore Reserves, internal Noranda memorandum, dated October 8, 1990.
Reference (Reserve-Resource): Salisbury & Assoc., 1987, Rock Lake Reserve Estimates, confidential memorandum, dated March 6, 1987.
Reference (Reserve-Resource): Saunders, D. M., 1994, Montanore project Ore Reserves, internal Noranda memorandum, dated December 14, 1994.
Reference (Deposit): Boleneus, D.E., Appelgate, L.M., Stewart, J.H., and Zientek, M.L., 2005, Stratabound Copper-Silver Deposits of the Mesoproterozoic Revett Formation, Montana and Idaho; USGS Scientific Investigations Report 2005?5231, cuag_deposit.txt.
Reference (Reserve-Resource): Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States: U. S. Geological Survey Open-File Report 98?206, 33 p., diskette.
Reference (Deposit): ENGINEERING AND MINING JOURNAL, MARCH, 1989
Reference (Reserve-Resource): Silver Wheaton 2009 News Release http://silverwheaton.com/main/?newsReleases&70[ accessed 7/22/2009 1:36:25 PM]
URL: http://silverwheaton.com/main/?newsReleases&70
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.
