Kelsey Lake, State Line Kimberlite Mining District, Larimer County, Colorado, USAi
| Regional Level Types | |
|---|---|
| Kelsey Lake | Lake |
| State Line Kimberlite Mining District | Mining District |
| Larimer County | County |
| Colorado | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° North , 105° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~72km
Type:
Köppen climate type:
Mindat Locality ID:
106123
Long-form identifier:
mindat:1:2:106123:2
GUID (UUID V4):
14d8d2fc-e252-4d27-a825-fb82cec04f84
Ref.: The American Museum of Natural History.
The "State Line Kimberlite District" along the Colorado-Wyoming border is home to the only operating diamond mine in the U.S., started at Kelsey Lake, Colorado, in June 1996. The largest diamond found so far is 28.3 carats, and about 25% of the 20,000-carat annual production is of gem quality.
There are eight kimberlite pipes known in the mine area. The 1 and 2 pipes were open pit mined (about 20 acres of surface exposure).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities1 valid mineral.
Localities in this Region
- Colorado
- Larimer County
- State Line Kimberlite Mining District
- Kelsey Lake
- State Line Kimberlite Mining District
- Larimer County
Other Regions, Features and Areas containing this locality
North America
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Great Plains DomainDomain
USA
- Colorado
- Larimer County
- State Line Kimberlite Mining DistrictMining District
- Larimer County
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