1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Last Chance Basin Placers

Past Producer in Alaska, United States with commodity Gold
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10001298
MRDS ID A012035
Record type Site
Current site name Last Chance Basin Placers
Alternate or previous names Jualpa Mining Co.
Related records 10209501

Geographic coordinates

Geographic coordinates: -134.39257, 58.30642 (WGS84)

Site location context

Political divisions (FIPS codes)

Juneau(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Juneau B-2(quadrangle 1:63,360 scale)

Juneau SE(quadrangle 1:100,000 scale)

Juneau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lynn Canal(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

LG(Federal land areas administered by LG)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • SEE: USGS OFR 85-717, FIG. 1, NO. J159 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

Materials information

Materials Type of material
Gold Ore

Nearby scientific data

(1) -134.39257, 58.30642
ListMap

Economic information

Ore body information

  • Thickness 30.48M
    Length 1219.2M
    Width 213.36M

Comments on the geologic information

  • DEPOSIT FORMED WHEN LANDSLIDE DAMMED GOLD CREEK, CAUSING RAPID GRAVEL ACCUMULATION IN GLACIALLY FORMED BASIN

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Comments on the workings information

  • 2000 FT TUNNEL DRIVEN IN 1897; FAILED TO REACH BEDROCK; LANDSLIDE DEBRIS PRESENTED DIFFICULTIES IN DRIVING TUNNEL

Comments on development

  • ACTIVE MAINLY IN THE LATE 1890'S TO EARLY 1900'S

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GRAVEL DEPOSIT 4000 FT LONG, 700 FT WIDE AND A MAXIMUM OF 90-100 FT THICK; IN GLACIALLY SCOURED BASIN DAMMED BY A LANDSLIDE
Deposit PROBABLY NOT A PROFITABLE ENTERPRISE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.