The Alto Mine is a copper mine located in Juab county, Utah at an elevation of 6,604 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: 6,604 Feet (2,013 Meters)
Commodity: Copper
Lat, Long: 39.56111, -113.03472
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Alto Mine MRDS details
Site Name
Primary: Alto Mine
Commodity
Primary: Copper
Secondary: Silver
Secondary: Gold
Location
State: Utah
County: Juab
District: Detroit 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: Utah Central Mining Co.
Years: 1934 -
Owner Name: Utah Central Mining Co.
Production
Year: 1917
Year: 1917
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1914
Discovery Year: 1900
Discovery Method: Ore-Mineral In Place
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: Drum Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR LENS
Structure
Type: R
Description: Drum Mtns Homocline
Type: L
Description: Keystone Fault Strikes Ne
Alterations
Alteration Type: L
Alteration Text: Iron Okide
Rocks
Name: Dolomite
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian
Name: Dolomite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Analytical Data: 1934 DUMP ASSAY: 0.025 OZ AU, 0.70 OZ AG, 1.22% CU
Analytical Data: ASSAY OF JAN. 12, 1916: 2 SAMPLES AVG. 26.28% CU, 0.03 OZ AU, 0.28 OZ AG
Materials
Ore: Malachite
Ore: Gold
Comments
Comment (Geology): A 40 FT VERTICAL WINZE SUNK ON THE MAIN ORE SHOOT IS ALL IN MINERALIZED MATERIAL INDICATING THE DOWNWARD EXTENSION OF THE SHOOT. DRIFTING 100 FT NW ORE QUANITY DECREASED IN THAT DIRECTION.
Comment (Development): ALL OF THE REPORTS MENTIONED ABOVE ARE ON FILE AT THE UTAH GEOLOGICAL & MIN. SURVEY, SALT LAKE CITY, UT. THE REPORTS INCLUDE MAPS, MEASURED SECTIONS, ASSAYS AND OTHER INFORMATION.
Comment (Location): SECTION SUBDIVISIONS SW 1/4 SE 1/4 NW 1/4
Comment (Production): ITEM #1 GARFIELD SMELTER RETURN 3-13-1916; ITEM #2 RETURN OF JUNE 1, 1916; ITEMS 3-4 JULY 1917
Comment (Deposit): AT 40 FT FROM PORTAL OF UPPER TUNNEL ORE WAS FOUND AND FOLLOWED ABOUT 140 FT W. & NW WITH TO OR MORE STOPES, ONE OF WHICH EXTENDS TO THE SURFACE ABOUT 80 FT ABOVE THE TUNNEL LEVEL.
Comment (Workings): 2 TUNNELS HAVE BEEN DRIVEN AT A VERTICAL INTERVAL OF 142 FT. THE UPPER OF WHICH IS RESPONSIBLE FOR ALL ORE PRODUCTION TO 1934
References
Reference (Production): CRITTENDEN, M.D., 1961, MANGANESE DEPOSIT IN THE DRUM MTN.: USGS BULL. 1082-H
Reference (Deposit): CRANE, G.W., 1934, GEOLOGY AND EVALUATION OF COMPANY HOLDINGS IN THE DETROIT DISTRICT: REPORT TO MR. FRANK SYLVESTER, PRESIDENT OF UTAH CENTRAL MINES COMPANY FROM G.W. CRANE, CONSULTING GEOLOGIST, MARCH 15, 1934, MAPS, SURVEYS, ASSAYS, ETC.
Reference (Deposit): 1920 RECON BUTLER, USGS PP 111
Reference (Deposit): 1961 RECON CRITTENDEN, USGS BULL. 1082-H
Reference (Deposit): 1969 RECON UT. GEOL. & MIN. SURVEY RI 41
Reference (Deposit): CRITTENDEN, M.D., 1961, MANGANESE DEPOSITS OF THE DRUM MTNS, JUAB-MILLARD COUNTIES UTAH: USGS BULL. 1082-H
Reference (Deposit): EVERTS, M.L., 1980, UT. GEOL. & MIN. SURVEY, ON SITE INVESTIGATION
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