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Cahoon Creek

Past Producer in Alaska, United States with commodities Gold, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10002184
MRDS ID A013082
Record type Site
Current site name Cahoon Creek
Related records 10258560

Geographic coordinates

Geographic coordinates: -136.25213, 59.37974 (WGS84)
Relative position These placer gold mine workings extend approximately 2 miles upstream on Cahoon Creek from its junction with McKinley Creek. Cobb (1972 [MF 424]) included them in his location 26 with other placer gold workings on Porcupine and McKinley Creeks.

Site location context

Political divisions (FIPS codes)

Haines(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Skagway B-4(quadrangle 1:63,360 scale)

Skagway SE(quadrangle 1:100,000 scale)

Skagway C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chilkat-Skagway Rivers(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -136.25213, 59.37974
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = According to Hoekzema and others (1986), the lower 0.5 miles of Cahoon Creek were extensively mined by the Cahoon Creek Mining Company from 1908 to 1913. Cahoon Creek is a steep northeast flowing tributary to McKinley Creek with an average gradient of 650 feet per mile. Very little gravel is present in the channel and much of the creek is on bedrock. There is some potential for abandoned channel or bench deposits, but these are generally covered by colluvium and avalanche debris. Gold concentration increases toward the junction with McKinley Creek. Samples contained from less than 0.0004 to 0.045 ounces of gold per cubic yard. The gold is nuggety and 83% is less than 0.02 inches in size. Panned concentrates contained greater than 70% magnetite, with minor pyrite, zircon, and garnet.? the Cahoon Creek placer mineralization lies within the northwest-trending zone of quartz-sulfide veining in sediments and slates in the Skagway B-4 quadrangle that is described by Wright (1904 [B 225 and B 236}), Eakin (1918 and 1919), and MacKevett and others (1974) and considered to be the source of placer gold in this area.
  • Age = Quaternary.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Juneau (Skagway subdistrict)

Comments on the production information

  • Production Notes = Hoekzema and others (1986) estimate 79,650 ounces for gold was produced from the Porcupine area that includes Cahoon Creek, but separate production figures for Cahoon Creek are not available. See Porcupine Creek (SK041) for a more detailed history of production in the Porcupine area.

Comments on the reserve resource information

  • Reserves = None reported, but Hoekzema and others, 1986, note that an abandoned channel about 0.25 miles upstream from the current junction with McKinley Creek should be investigated.

Comments on the workings information

  • Workings / Exploration = The lower 0.5 miles of Cahoon Creek were extensively mined by the Cahoon Creek Mining Company from 1908 to 1913 (Hoekzema and others, 1986). A little placer mining was done at the head of Cahoon Creek in the early days of the camp, but apparently with little success (Eakin, 1918 and 1919).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Hoekzema and others, 1986

General comments

Subject category Comment text
Deposit Model Name = Modern stream placer (Cox and Singer, 1986: model 39a).

Reporter information

Type Date Name Affiliation Comment
Reporter 04-FEB-2001 T.C. Crafford T. Crafford & Associates

Beyond USGS

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

External references

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.