The Last Chance Gulch 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: 46.58194, -112.02917
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.
Last Chance Gulch Placer MRDS details
Primary: Last Chance Gulch Placer
Secondary: Oro Fino
Secondary: Dry and Grizzley Gulches
County: Lewis and Clark
District: Helena District
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Owner Name: Porter Brothers Corp. And Perry-Schroeder Dredge
Record Type: Site
Operation Category: Past Producer
Deposit Type: Placer
Operation Type: Unknown
Discovery Year: 1864
Years of Production:
Deposit Size: S
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Description: Boulder Batholith
Comment (Location): LAT. LONG. ON LAST CHANCE GULCH, SW OF HELENA. ; INFO FROM LAND.ST :(1950)
Comment (Geology): GOLD DERIVED FROM LODE DEPOSITS WITHIN DRAINAGE BASIN OF LAST CHANCE AND ITS TRIBUTARIES.
Comment (Deposit): THE AREA OF FIRST DISCOVERY IS NOW UNDER HELENA'S BUSINESS DISTRICT. THE FLATS N. OF HELENA AND THE GULCHES SW (OROFINO, DRY AND GRIZZLEY GULCHES) ARE INCLUDED IN THE LAST CHANCE PLACER. ; INFO.SRC : 1 PUB LIT
Comment (Development): 1935 CONNECTED BUCKET DREDGE ON GULCH N. OF TOWN.
Reference (Deposit): MBMG MEM 26, P. 55-57.
Reference (Deposit): USGS BULL 842, P. 36.
Reference (Deposit): MBMG MEM 5, P. 24.
Reference (Deposit): USGS PP 610, P. 154-55.
Reference (Production): MBMG MEM NO 26, P. 56, 57.