Garland Ranch Mine, Douglas Flat, Vallecito Mining District, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Garland Ranch Mine | Mine |
| Douglas Flat | Unincorporated Community |
| Vallecito Mining District | Mining District |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 7' 7'' North , 120° 28' 3'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Murphys | 2,213 (2015) | 2.2km |
| Vallecito | 442 (2011) | 3.2km |
| Forest Meadows | 1,249 (2015) | 7.7km |
| Angels Camp | 2,677 (2012) | 8.4km |
| Columbia | 2,297 (2017) | 10.8km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 8km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 42km |
A former placer & lode Au mine located in secs. 8 & 18, T3N, R14E, MDM, (2 miles S of of Murphys). Operated prior to and during the period 1935 to 1936. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a placer & vein deposit. The May Jane ore body is 0.76 meters thick at a length of 60.96 meters. The vein dips almost vertically. Abundant pyrite is present. There are also 2 auriferous channels overlain by andesite lava flows that traverse the ranch. These channels are developed. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada) and/or Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range).
Workings include surface and underground openings comprised of an 80 foot adit and a 60 foot raise as well as shallow open cuts.
Production data are found in: Logan, Clarence August and Franke, H. (1936).
Analytical data results: Ore was reported to be valued at $8.50 (period values) Au/ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au Description: Placer and lode material. |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10029420 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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