Cold Spring and Red Cloud, Gold Hill District, Boulder Co., Colorado, USA
|Latitude & Longitude (WGS84):||40° 3' 59'' North , 105° 17' 33'' West|
|Latitude & Longitude (decimal):||40.06639,-105.29250|
|Köppen climate type:||BSk : Cold semi-arid (steppe) climate|
REF:Deposit:: LOVERING AND GODDARD, 1950, USGS P.P. 223, PG. 254.
Deposit:: CONSV. DIV. COMP. DATE, 1,62
Commodities (Major) - Gold
Deposit Type: Vein
Development Status: Producer
Host Rock: Granite
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
15 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
|Holocene - Pleistocene|
0 - 2.588 Ma
Age: Pleistocene (0 - 2.588 Ma)
Description: Slumps, rock falls, and earthflows that range from active to inactive. Material in the deposits ranges in size from clay and silt to blocks several feet in diameter (near outcrops of the Fountain Formation and Dakota Group)
Reference: Colton, Roger B. Geologic Map of the Boulder-Fort Collins-Greeley area, Colorado . U.S. Geological Survey Geologic Investigations Series I-855-G. 
|Late Cretaceous - Early Cretaceous|
66 - 145 Ma
Age: Cretaceous (66 - 145 Ma)
Stratigraphic Name: Colorado Group
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. 
201.3 - 252.17 Ma
|Mesozoic sedimentary rocks|
Age: Triassic (201.3 - 252.17 Ma)
Lithology: Sedimentary 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.