|Latitude & Longitude (WGS84):||33° 33' 43'' North , 116° 47' 35'' West|
|Latitude & Longitude (decimal):||33.56222,-116.79306|
|Köppen climate type:||Csa : Hot-summer Mediterranean climate|
A feldspar-quartz-gemstone occurrence/mine located in sec. 17, T7S, R2E, SBM, 1.9 km (1.2 miles) SSW of Cahuilla Mountain (coordinates of record) and 5.2 km (3.2 miles) WNW of Cahuilla (town), on National Forest land.
NOTE: This mine is not listed in the USGS MRDS database.
Mineralization is hosted in pegmatite.
Workings reflected on the topo map include 1 open cast mine symbol labeled "Williamson Mine" at this point).
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
6 valid minerals.
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
|Late Cretaceous - Paleoproterozoic|
66 - 2500 Ma
|pre-Cenozoic granitic and metamorphic rocks undivided|
Age: to Cretaceous (66 - 2500 Ma)
Stratigraphic Name: Ash Mountain Complex; Placerita Formation; Sur Series
Comments: Southern California, Mojave Desert, Sierra Nevada, central California Coast Ranges
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. 
66 - 145 Ma
|Mesozoic intrusive rocks|
Age: Cretaceous (66 - 145 Ma)
Lithology: Intrusive igneous 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.