Dumbell Nos. 1 and 2 (Dumbell Mine; G.S. Nos. 3-5 claims), Martinez Mountain, Santa Rosa Mts, Riverside Co., California, USA
|Latitude & Longitude (WGS84):||33° 28' 41'' North , 116° 18' 35'' West|
|Latitude & Longitude (decimal):||33.4783325195, -116.309997559|
A W occurrence/group of claims located in sec. 13, T8S, R6E, SBM, 9.4 km (5.8 miles) SSE of Martinez Mountain (coordinates of record) and 11.8 km (7.3 miles) ESE of Toro Peak (coordinates of record). MRDS database stated accuracy for this location is 1,000 meters.
Local rocks include pre-Cenozoic granitic and metamorphic rocks undivided.
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. 
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10164340.
U.S. Bureau of Mines Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060650151.