The Mary Lee Mine is a beryllium mine located in Park county, Colorado at an elevation of 8,599 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: 8,599 Feet (2,621 Meters)
Commodity: Beryllium
Lat, Long: 39.07583, -105.42833
Map: View on Google Maps
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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.
Mary Lee Mine MRDS details
Site Name
Primary: Mary Lee Mine
Secondary: Little Bear Mine
Secondary: Little Bear No. 2 Mine
Commodity
Primary: Beryllium
Secondary: Tungsten
Tertiary: Tin
Tertiary: Molybdenum
Tertiary: Uranium
Tertiary: REE
Tertiary: Lead
Tertiary: Zinc
Tertiary: Arsenic
Tertiary: Iron
Tertiary: Copper
Location
State: Colorado
County: Park
District: Lake George (Badger Flats) Beryllium Area (Mountain Dale 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: Underground
Ownership
Owner Name: U.S. Beryllium Corp.
Years: 1963 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1957
Discovery Method: Ore-Mineral In Place
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
Form: CUPOLAS, PODS, IRREGULAR LENSES
Structure
Type: R
Description: Tarryall Mountains, Front Range, Puma Hills, Badger Flats
Type: L
Description: Badger Flats Fault, Minor Faults, Round Mountain Syncline
Alterations
Alteration Type: L
Alteration Text: Greisenization
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Analytical Data: 1968 SAMPLES: 1-30 PPM AG, 3-70 PPM BE, 15-10,000 PPM CU, 15-150 PPM MO, 50-GT 10000 PPM PB, 7-150 PPM SN, 150-10000 PPM W, 300-GT 10000 PPM ZN
Analytical Data: SAMPLES TAKEN 1959-1969: 0.0003-0.0015% BE, 0.00007-0.0003% AG, 0.003-0.07% CU, 0.0015-0.007% MO, 0.007-0.15% PB, 0.0007-0.007% SN, 0.03-0.07% ZN
Analytical Data: 0.003% BE, 0.015% CU, 0.15% PB, 0.003% SN
Analytical Data: MASSES OF GALENA CONTAIN 0.3-0.7% AG, 0.3-1.5% BI, 0.007-0.7% CU
Materials
Ore: Bertrandite
Ore: Cassiterite
Ore: Uraninite
Ore: Covellite
Ore: Pyrite
Ore: Sphalerite
Ore: Euclase
Ore: Beryl
Ore: Chalcopyrite
Ore: Molybdenite
Ore: Wolframite
Ore: Galena
Gangue: Muscovite
Gangue: Siderite
Gangue: Quartz
Gangue: Fluorite
Gangue: Barite
Gangue: Topaz
Comments
Comment (Deposit): THE REDSKIN STOCK IS ZONED, WITH NEARLY ALL OF THE BERYLLIUM DEPOSITS OCCURRING IN THE GRANITE-APLITE OR PORPHYRITIC GRANITE FACIES OF THE GREISENIZED REDSKIN GRANITE. EVEN THOSE DEPOSITS NOT ACTUALLY IN THE REDSKIN GRANITE ARE SPATIALLY AND GENETICALLY RELATED TO IT.
Comment (Workings): MAIN WORKINGS ON EASTERN PART OF VEIN, COMPRISED OF 2 ADITS, 1 INCLINE; SHALLOW SHAFT AT WESTERN END OF VEIN. ONE ADIT 105-FT LONG, THE OTHER 120-FT LONG
Comment (Location): MARY LEE MINE AREA ; INFO FROM LAND.ST :(1976)
Comment (Commodity): NONPEGMATITIC BERYLLIUM DEPOSITS; BERYL OCCURS AS HEXAGONAL CRYSTALS AND MASSIVE POIKILOBLASTIC GRAINS.
Comment (Production): SMALL PRODUCTION OF BERYL (PROBABLY L.T. 5 TONS) AS OF 1969; POSSIBLY SOME W
References
Reference (Deposit): MEEVES, H.C., 1966, NONPEGMATITIC BERYLLIUM OCCURRENCES IN ARIZONA, COLORADO, NEW MEXICO, UTAH, AND FOUR ADJACENT STATES: USBM REPORT OF INVESTIGATIONS 6828, P. 25-34.
Reference (Deposit): HAWLEY, C.C. AND GRIFFITTS, W.R., 1968, DISTRIBUTION OF BERYLLIUM, TIN, AND TUNGSTEN IN THE LAKE GEORGE AREA, COLORADO: USGS CIRCULAR 597, 18 P.
Reference (Deposit): HAWLEY, C.C. AND WOBUS, R.A., 1977, GENERAL GEOLOGY AND PETROLOGY OF THE PRECAMBRIAN CRYSTALLINE ROCKS, PARK AND JEFFERSON COUNTIES, COLORADO: USGS PROFESSIONAL PAPER 608-B, 77 P.
Reference (Deposit): SIEMS, P.L., 1963, BERYLLIUM: COLORADO SCHOOL OF MINES MINERAL INDUSTRIES BULLETIN, V.6, NO. 3 15 P.
Reference (Deposit): WORCESTER, P.G., 1919, MOLYBDENUM DEPOSITS OF COLORADO: CGS BULLETIN 14, P. 73-74.
Reference (Deposit): MEEVES, H.C., HARRER, C.M., SALSBURY, M.H., KONSELMAN, A.S., SHANNON S.S., JR., 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: ARIZONA, COLORADO, NEW MEXICO, SOUTH DAKOTA, UTAH, AND WYOMING: USBM INFORMATION CIRCULAR 8298, P. 30
Reference (Deposit): HAWLEY, C.C., 1969, GEOLOGY AND BERYLLIUM DEPOSITS OF THE LAKE GEORGE (OR BADGER FLATS) BERYLLIUM AREA, PARK AND JEFFERSON COUNTIES, COLORADO: USGS PROFESSIONAL PAPER 608-A, 44 P.
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