Coon Hollow Mine (Coon Hollow and Excelsior), Coon Hollow, Placerville (Hangtown), Placerville Mining District, El Dorado County, California, USAi
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Latitude & Longitude (WGS84):
38° 43' 7'' North , 120° 48' 13'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Placerville | 10,650 (2017) | 1.3km |
| Diamond Springs | 11,037 (2011) | 2.8km |
| Deer Park | 1,384 (2018) | 4.4km |
| Cold Springs | 446 (2011) | 6.3km |
| Camino | 1,750 (2011) | 11.4km |
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 |
|---|---|---|
| El Dorado County Mineral and Gem Society | Placerville, California | 1km |
| Gold Country Treasure Seekers | Placerville, California | 1km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 36km |
| Roseville Rock Rollers | Roseville, California | 42km |
| Fossils for Fun Society, Inc. | North Highlands, California | 49km |
A former placer Au occurrence drift mine & hydraulic mine located in the SW¼ sec. 18 and in the NW¼ sec. 19, T10N, R11E, MDM, on the E margin of Coon Hollow (flat) and 1.3 km (0.8 mile) SSW of Placerville proper. Discovered in 1852. Property contains 70 acres. The deposit was drifted from 1852 to 1861 and hydraulicked from 1861 to 1871. MRDS database stated accuracy for this location is 500 meters. Most recently operated by the Harms Brothers Construction Co. as a source of aggregate materials. The Coon Hollow claim is shown in the SW¼ of sec. 18 on Pl. II, Logan 1938).
Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains) and/or Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include surface operations.
Au production from this area totaled $10,000,000 (period values). The gravel yielded about $1 (period values) per cubic yard. Accumulated tailings were subsequently being mined for aggregate.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au Description: Placer material. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- Mother Lode BeltBelt
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060170764 & 0060170766
