Chuck River Placer

Past Producer in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10002433
MRDS ID A013355
Record type Site
Current site name Chuck River Placer
Alternate or previous names Chuck River, Sylvia Creek, Slate Creek, Lost Rocker Claim Group 3 Claims
Related records 10209417

Geographic coordinates

Geographic coordinates: -133.3486, 57.56697 (WGS84)
Relative position 2.0 MI. S OF WINDHAM PO
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • 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).

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • DATA FROM USGS B 287, P. 42

Analytical data

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

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Clay, Mud
    Stratigraphic age (youngest) Holocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -133.3486, 57.56697

Ore body information

  • Length 30576.7M

Comments on the geologic information

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

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1900

Mining district

District name Petersburg

Land status

Ownership category National Forest

Comments on the workings information

  • 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.

Comments on 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

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013355

Bibliographic references

  • Deposit

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

  • Deposit

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

  • Other Database

    BAG-B-1525-P-156

General comments

Subject category Comment text
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.
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
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1987 Niles, L.P. (Huber, D.F.) U.S. Geological Survey