Chuck River Placer

The Chuck River Placer is a gold mine located in Alaska.

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.

Mine Info

Satelite View

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.

Site Name

Primary: Chuck River Placer
Secondary: Chuck River
Secondary: Sylvia Creek
Secondary: Slate Creek
Secondary: Lost Rocker Claim Group 3 Claims

Commodity

Primary: Gold

Location

State: Alaska
District: Petersburg

Land Status

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.

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1900
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Clay, Mud
Role: Host
Age Type: Host Rock
Age Young: Holocene

Analytical Data

Analytical Data: 0.031 OZ/CY AU ($0.65/CY AT $20.67/OZ AU IN 1897) AT LOST ROCKER GROUP ON SLATE CREEK

Materials

Not available

Comments

Comment (Deposit): PLACER DEPOSITS OCCUR INTERMITTENTLY ALONG 15 MI. LENGTH OF CHUCK RIVER, AND ITS TRIBUTARIES: 4 MI. LONG SYLVIA CREEK AND 4 MI. LONG SLATE CREEK. CHUCK RIVER FORMS WIDE, GRAVEL-FILLED VALLEY NEAR ITS MOUTH, NARROWING TO NARROW CANYON ABOVE JUNCTION WITH SYLVIA CREEK 1.5 MI. FROM WINDHAM BAY. SLATE CREEK JOINS CHUCK RIVER 3 MI. FROM MOUTH. 8 MI. FROM MOUTH OF CHUCK RIVER, AT HORSESHOE BEND, GRAVEL BED 0.5 MI. LONG AND SEVERAL HUNDRED FT. WIDE WITH LARGE NUMBER OF GRANITE BOULDERS OVERLIES DEEP BED OF BLUE CLAY, WITH SMALLER MATERIAL UPSTREAM. 300-FT. DIVERSION TUNNEL DRIVEN IN 1903, DRAINING GRAVEL BED. SYLVIA CREEK HAS SMALL GRAVEL WASH WITH FEW LARGE BOULDERS, WITH GOLD WIDELY DISSEMINATED THROUGHOUT DEPOSIT. SLATE CREEK HAS 400 FT. BY 800 FT. BASIN 0.5 MI. FROM JUNCTION WITH CHUCK RIVER, WITH 5 FT. DEEP GRAVEL BED CONSISTING OF SLABS OF SLATE AND COBBLES OF GREENSTONE WITH OCCASIONAL GRANITE BOULDERS, WITH 0.031 OZ. OF GOLD/CY.

Comment (Deposit): STREAM GRADIENT OF CHUCK RIVER LESS THAN 100 FT./MI., SYLVIA CREEK 400 FT./MI., SLATE CREEK 800 FT./MI.. ; INFO.SRC : 1 PUB LIT

Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Comment (Location): USGS B 1525, P. 156. LOCATION IS AT JUNCTION OF SYLVIA CREEK AND CHUCK RIVER, NEAR MOUTH OF CHUCK RIVER. PLACERS EXTEND INTERMITTENTLY UPSTREAM ENTIRE LENGTH OF CHUCK RIVER, SLATE AND SYLVIA CREEKS. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): 25 PLACER CLAIMS LOCATED ON CHUCK RIVER, 20 ON SYLVIA CREEK, AND 3 CLAIMS OF LOST ROCKER GROUP ON SLATE CREEK ABOUT 1900. HYDRAULIC LINE AND SLUICE BOXES ON LOST ROCKER GROUP. DIVERSION TUNNEL DRIVEN ON CHUCK RIVER IN 1903

Comment (Workings): HYDRAULIC PIPELINE AND SLUICE BOXES AT LOST ROCKER CLAIM ON SLATE CREEK 0.5 MI. FROM JUNCTION WITH CHUCK RIVER. 300 FT. DIVERSION TUNNEL DRIVEN ON CHUCK RIVER 8 MI. FROM MOUTH, BUT NO OTHER DEVELOPMENT REPORTED. NO RECORD OF WORKINGS ON SYLVIA CREEK.

Comment (Geology): MAJOR.UNITS: BEDROCK CONSISTS OF CRETACEOUS BLACK SLATE, PHYLLITE, AND GREENSTONE. ; REG.COM: SOURCE OF PLACER GOLD IS UNKNOWN.

Comment (Commodity): DATA FROM USGS B 287, P. 42

References

Reference (Deposit): USGS B 1525, P. 156, PLATE 3 (1984)

Reference (Deposit): USGS B 287, P. 40, 42, 43, FIG. 3 (1906)

Reference (Other Database): BAG-B-1525-P-156

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