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

Ketchem Dome Area

Producer in Alaska, United States with commodities Gold, Silver, Mercury, Tin, Tungsten
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. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10000548
MRDS ID A010753
Record type Site
Current site name Ketchem Dome Area

Geographic coordinates

Geographic coordinates: -144.87792, 65.4078 (WGS84)
Relative position The location is roughly the center of a productive placer area of approximately 80 square miles. It includes the following main drainages: Deadwood Creek, Ketchem Creek and Bottom Dollar Creek.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Circle SE(quadrangle 1:100,000 scale)

Circle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Mercury Secondary
Tin Critical Secondary
Tungsten Critical Secondary

Materials information

Materials Type of material
Cassiterite Ore
Cinnabar Ore
Gold Ore
Scheelite Ore
Silver Ore

Mineral occurrence model information

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

Nearby scientific data

(1) -144.87792, 65.4078
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The creeks around Ketchem Dome drain a variety of rock types. To the north and northeast of Ketchem Dome, Ketchem and Holdem Creeks drain an area underlain by Tertiary granite. To the south, the Bottom Dollar Creek drainage is underlain by both Cretaceous granite and quartz-muscovite schist - the Lower Schist unit desribed by Wiltse and others (1995). Deadwood Creek drainage to the northwest is underlain both by Tertiary granite and the quartz-muscovite Lower Schist.? Gold is found in the gravel close to bedrock and in cracks in the bedrock. Placer gold has been mined on several creeks within this area that have been described separately (see Workings and Exploration).

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic

Comments on exploration

  • Status = Active

Mining district

District name Circle

Comments on the production information

  • Production Notes = See Ketchem Creek, ARDF no. CI031, Bottom Dollar Creek, ARDF no. CI007 and Deadwood Creek, ARDF no. CI014 for specific site-production notes.

Comments on the workings information

  • Workings / Exploration = See Ketchem Creek, ARDF no. CI031, Bottom Dollar Creek, ARDF no. CI007 and Deadwood Creek, ARDF no. CI014 for site-specific workings and exploration.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Cobb, 1973, B 1374.

General comments

Subject category Comment text
Deposit Model Name = Placer gold deposit (Cox and Singer, 1986; model 39a)
Deposit Other Comments = See also Ketchem Creek, ARDF no. CI031, Bottom Dollar Creek, ARDF no. CI007 and Deadwood Creek, ARDF no. CI014.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-SEP-98 C.J. Freeman Avalon Development Corporation
Reporter 09-SEP-98 J.R. Guidetti Schaefer Avalon Development Corporation
Reporter 09-SEP-98 Clements, A.S. Avalon Development Corporation

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.