The Pass Me By Mine is a gold mine located in Conejos county, Colorado at an elevation of 11,060 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: 11,060 Feet (3,371 Meters)
Commodity: Gold
Lat, Long: 37.3875, -106.60194
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.
Pass Me By Mine MRDS details
Site Name
Primary: Pass Me By Mine
Secondary: Patented Claims: Pass Me By, MS 15371
Secondary: Arla, MS 15371
Secondary: Vivian, MS 15371
Secondary: Agnes, MS 15371
Secondary: Youel, MS 15371
Secondary: Edna, MS 15371
Secondary: Starlight, MS 15371
Secondary: Daylight, MS 15371
Secondary: Cleora, MS 15371
Secondary: Upper Ten, MS 15371
Secondary: Homestake, MS 15371
Commodity
Primary: Gold
Location
State: Colorado
County: Conejos
District: Decatur West (Stunner) 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: Pass Me By Tunnel, Mining, And Milling Co.
Years: 1915 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1897
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
Model Name: Polymetallic veins
Orebody
Not available
Structure
Type: R
Description: San Juan Volcanic Field
Type: L
Description: Platoro Caldera, Summitville Caldera, Alamosa River Stock, Summitville Fault, Lookout Mtn Vent-Dome
Alterations
Not available
Rocks
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Oligocene
Analytical Data
Not available
Materials
Gangue: Alunite
Gangue: Quartz
Comments
Comment (Location): ON WEST SLOPE OF LOOKOUT MTN ABOVE IRON CREEK, 0.6 MILE SW OF LOOKOUT MTN. ; INFO FROM LAND.ST :1975
Comment (Deposit): POST-SUMMITVILLE-COLLAPSE IGNEOUS ACTIVITY INCLUDES EMPLACEMENT OF ALAMOSA RIVER MONZONITE STOCK ALONG SOUTH BOUNDING CORNWALL RING FAULT AND LOCAL VOLCANIC VENTS AT SHEEPSHEAD, LOOKOUT MTN, AND ELEPHANT MTN. CALKIN (1967) DESCRIBES VENT-DOME COMPLEXES AS CONSISTING OF LOWER FRIABLE AGGLOMERATIC TUFF (QUARTZ LATITE AND VITROPHYRE), MIDDLE BLACK VITROPHYRE INTERMIXED AND INTERCALATED WITH UPPER QUARTZ LATITE CORE. MINERALIZATION FOUND ON ARLA VEIN MAY HAVE BEEN ALTERED RADIAL FRACTURE OR QUARTZ LATITE PORPHYRY DIKE. FIRST SECTION OF TUNNEL PROBABLY PASSES THROUGH PROGRESSIVELY ALTERED ROCKS, FROM OUTER PROPYLITIC ZONE THROUGH ARGILLIC ZONE AND INTO QUARTZ-ALUNITE ZONE ADJACENT VENT. BEND IN TUNNEL COULD REFLECT INTERSECTION WITH UNALTERED VENT FACIES AT DEPTH. MINE DISCHARGE WATER NOTED TO CONTAIN FE SULFATE AND ARSENIC, POSSIBLY INDICATING AURIFEROUS SULFIDE MINERALIZATION.
Comment (Workings): TUNNEL DRIVEN N 85 W FOR 2500 FT, THENCE 1100 FT AT N 50 W, AS REPORTED BY PATTON (1917) AND CALKIN (1967), BUT GOW AND YANG (1914) REPORT TUNNEL HEADING N 50 E AFTER BEND.
Comment (Development): AU DISCOVERED IN ARLA VEIN IN 1897, TUNNEL STARTED 600 FT BELOW APEX OF VEIN. WORKINGS APPARENTLY CLOSED BY 1913 DUE TO BAD AIR.
References
Reference (Deposit): BLM MINERAL SURVEY MS 15371
Reference (Deposit): PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.
Reference (Deposit): LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.
Reference (Deposit): GOW, T.T., AND YANG, W.T., 1914, SURVEY NORTHWEST OF GILMORE, CONEJOS COUNTY, COLORADO: COLORADO SCHOOL OF MINES THESIS T-465.
Reference (Deposit): CALKIN, W.S., 1967, GEOLOGY, ALTERATION, AND MINERALIZATION OF THE ALUM CREEK AREA, SAN JUAN VOLCANIC FIELD, COLORADO: COLORADO SCHOOL OF MINES THESIS T-1113.
Colorado Mining Photos
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