The Cottonwood Creek and Gravel Range Placer is a gold mine located in Lewis and Clark county, Montana.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Primary Mineral: Gold
Lat, Long: 46.83972, -112.28667
Map: View on Google Maps
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Cottonwood Creek and Gravel Range Placer MRDS details
Primary: Cottonwood Creek and Gravel Range Placer
County: Lewis and Clark
Record Type: Site
Operation Category: Past Producer
Deposit Type: Placer
Operation Type: Unknown
Years of Production:
Deposit Size: S
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Alteration Type: L
Alteration Text: River Gravel In Places Are Cemented With Silica.
Comment (Location): LAT. LONG. MOUTH OF COTTONWOOD CREEK, PLACER GOES UP STREAM FOR ABOUT 5.5 KM.
Comment (Deposit): 2 AGES; (1) OLDER AND LARGER IS AN ANCIENT RIVER CHANNEL WHICH IS NOW A CREST OF GRAVEL RANGE (2) YOUNGER PLACERS IN GULLIES AND VALLEYS DRAINING FROM CREST TO COTTONWOOD CREEK.
Comment (Geology): THE ANCIENT RIVER CHANNEL EXTENDS 4 MI ALONG RIDGE; IT IS 500 FT. THICK AND CONTAINS LITTLE GOLD. PLACER GOLD MAY HAVE BEEN DERIVED FROM LODES OF THE STEMPLE-GOULD DISTRICTS.
Reference (Deposit): USGS BULL 842, P. 119.
Reference (Deposit): MBMG MEM 26, P. 55, 62-3.
Reference (Production): MBMG MEM NO 26, P. 62.