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Tillson Gold Prospect

Occurrence in Alaska, United States with commodity Gold
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Geologic information

Identification information

Deposit ID 10002349
MRDS ID A013266
Record type Site
Current site name Tillson Gold Prospect
Alternate or previous names 2 Claims: Bear Extension, Lena

Geographic coordinates

Geographic coordinates: -136.09592, 57.67665 (WGS84)
Elevation 396
Relative position 0.7 MI. N OF CHICHAGOF
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS B 929, PLATE 1; USGS MF-467, LOC. 27 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

  • NO DATA ON METAL CONTENT GIVEN, BUT GIVEN AMOUNT OF WORKINGS GOLD LIKELY EXISTS.

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Sitka Graywacke
    Rock description Sitka Graywacke
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -136.09592, 57.67665
ListMap

Ore body information

  • General form LENS
    Strike N 47 DEGREES W
    Dip 50 DEGREES SW
    Thickness 0.46M

Controls for ore emplacement

  • Faults Containing Quartz Veins

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1912
Discoverer Knute Knutson, Ole Berkland

Mining district

District name Chichagof

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Underground
    Length 28.96M

Comments on the workings information

  • 95 FT. TUNNEL DRIVEN ALONG 2 FAULTS 6 FT. APART, TRENDING N 47 DEGREES W.

Comments on development

  • CLAIMS STAKED BY KNUTE KNUTSON, OLE BERKLAND IN 1912. PASSED TO TILLSON IN 1915. TUNNEL DRIVEN, BUT NO KNOWN PRODUCTION.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013266

Bibliographic references

  • Deposit

    USGS B 929, P. 133 (1941)

  • Deposit

    USGS OF 78-450, P. 101 (1978)

  • Deposit

    USGS MF-467, LOC. 27 (1972)

  • Other Database

    BAG-B-929-PL-1

General comments

Subject category Comment text
Deposit TWO FAULTS ABOUT 6 FT. APART IN GRAYWACKE. DIP OF FOOTWALL FAULT 50 DEGREES SW, HANGING WALL FAULT STEEPER. TUNNEL FOLLOWS HANGING WALL FAULT 65 FT. QUARTZ IN BOTH FAULTS, 35 FT. LONG QUARTZ LENS 1.5 FT. THICK IN FOOTWALL FAULT.
Deposit NO SPECIFIC MENTION OF GOLD IN QUARTZ VEINS BY USGS B 929, P. 133; BUT GIVEN AMOUNT OF WORKINGS, IT IS LIKELY GOLD EXISTED. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey