Yellow Medicine Mine (Mountain Bell; MS 5187; Patented Claims: Yellow Medicine; MS 5187), Galena District (Henson Creek District), Hinsdale Co., Colorado, USA
|Latitude & Longitude (WGS84):||38° 1' 12'' North , 107° 28' 8'' West|
|Latitude & Longitude (decimal):||38.02000,-107.46889|
|Köppen climate type:||Dfc : Subarctic climate|
REF:Deposit:: IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 78-79.
Deposit:: SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN MOUNTAINS, COLORADO: ECON. GEOLOGY
Commodities (Major) - Copper, Silver; (Trace) - Zinc, Lead
Deposit Type: Vein
Development Status: Past Producer
Structure: San Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben
Host Rock: Quartz Latite, Monzonite, Porphyry
Tectonic Structure: Central Cordillera (Southern Rocky Mtns)
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
8 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Miocene - Eocene|
5.333 - 56 Ma
|Cenozoic volcanic rocks|
Age: Cenozoic (5.333 - 56 Ma)
Stratigraphic Name: San Juan Mountains
Comments: Southern Rocky Mountains
Lithology: Intermediate-felsic volcanic rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
23.03 - 33.9 Ma
|Ash-flow tuff of main volcanic sequence|
Age: Oligocene (23.03 - 33.9 Ma)
Description: Includes many named units
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.