The Annie Tunnel is a lead and silver mine located in Salt Lake county, Utah at an elevation of 9,301 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.
Elevation: 9,301 Feet (2,835 Meters)
Primary Mineral: Lead, Silver
Lat, Long: 40.60778, -111.61111
Map: View on Google Maps
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.
Annie Tunnel MRDS details
Primary: Annie Tunnel
Secondary: Alta Tunnel and Transportation Company
Secondary: Prince of Wales Group
Secondary: Antelope Group
County: Salt Lake
District: Big Cottonwood District
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.
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1935
Discovery Year: 1875
Discovery Method: Ore-Mineral In Place
Years of Production:
Deposit Size: S
General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Physiographic Detail: Wasatch Mountains
Mineral Deposit Model
Description: Vinta-Cottonwood Arch, Cordilleran Hingeline, Sevier Overthrust Belt
Description: Grizzly Thrust And Associated Thrusts, Reverse And Normal Faults
Alteration Type: L
Alteration Text: Minor Bleaching And Silicification, Oxidation
Age Type: Host Rock
Age Young: Mississippian
Age Type: Associated Rock Unit
Age Young: Pliocene
Analytical Data: 1275.0 PPM AG, LESS THAN .01 PPM AU, LESS THAN 1200 PPM CU, LESS THAN 1 PPM MO, 60500 PPM PB, 505000 PPM ZN, LESS THAN 5 PPM CO, 35 PPM NI
Comment (Location): INFO FROM LAND.ST :1983
Comment (Commodity): SILVER, LEAD, AND GOLD WERE PRODUCED
Comment (Production): TWO TEST LOTS OF ORE ASSAYED AS FOLLOWS-17 TON LOT CONTAINED 43.4 OZ/TON AG, 21.4% PB, $1.20 GOLD/TON-6 TON LOT CONTAINED 68.6 OZ/TON AG, 25.5% PB, AND $5.60 GOLD/TON. PRODUCTION STATISTICS WERE INCLUDED WITH THE PRINCE OF WALES GROUP.
Comment (Development): INITIALLY DEVELOPED THROUGH ANNIE TUNNEL AND LATER DEVELOPED AT DEPTH FROM ALTA TUNNEL. THE ANNIE TUNNEL WAS CONSOLIDATED WITH THE ALTA TUNNEL AND TRANSPORTATION COMPANY HOLDINGS IN 1911
Comment (Deposit): THE FISSURE VEIN MINED AT THE ANNIE TUNNEL IS THE PRINCE FISSURE. THIS SAME FISSURE WAS EXPECTED TO BE FOUND AT DEPTH IN THE ALTA TUNNEL BUT WAS NOT FOUND. LAMPHOPHYRE DIKES ARE FOUND IN THE PRINCE FISSURE AND APPEAR TO BE ASSOCIATED WITH MINERLAIZATION. REPLACEMENT DEPOSITS ARE MORE ABUNDANT IN THE LOWER WORKINGS. HOST ROCK FOR REPLACEMENT DEPOSITS IS THE FITCHVILLE FORMATION AND NO REPLACEMENT NOTED IN SURROUNDING FORMATIONS. REPLACEMENT ORE HORIZONS WERE REPEATED THREE TIMES BY REVERSE FAULT.
Comment (Deposit): Discovery Year: LATE 1800'S
Comment (Workings): ANNIE TUNNEL WORKINGS WERE LATER CONNECTED TO THE DEEPER ALTA TUNNEL. A RAISE FROM THE QUAD DRIFT OF THE ALTA TUNNEL INTERSECTED AN OLD FLOODED WINZE OF THE ANNIE TUNNEL. NO DESCRIPTION OF SIZE OF WORKINGS GIVEN
Comment (Geology): THE RAISE FROM THE ALTA TO ANNIE TUNNELS PASSES THROUGH TWO THRUSTS.
Reference (Deposit): JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, SALT LAKE COUNTY, UTAH: U.G.M.S. BULL. NO. 114.
Reference (Deposit): CALKINS, F.C., AND BUTLER, B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 201.
Reference (Deposit): BAKER, A.A., CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534
Reference (Production): JAMES, L.P., 1979,
Reference (Deposit): BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111.