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  3. Mineral Resource Data System (MRDS)

Innoko River

Prospect in Alaska, United States with commodity Gold
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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. 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 10308028
Record type Site
Current site name Innoko River

Geographic coordinates

Geographic coordinates: -156.45667, 63.11924 (WGS84)
Relative position Prospecting occurred along the Innoko River for two miles between the town of Ophir and the mouth of Ganes Creek. The exact location of the workings is not known. The coordinates mark the point on the Innoko river approximately midway between Ophir and the mouth of Ganes Creek, in sec. 30, T. 27 S., R. 13 E., Kateel River Meridian. The location is accurate within 3 miles.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ophir A-1(quadrangle 1:63,360 scale)

Ophir SE(quadrangle 1:100,000 scale)

Ophir(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

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

Nearby scientific data

(1) -156.45667, 63.11924
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The area drained by this part of the Innoko River is underlain mainly by undivided clastic sedimentary rocks. The river also drains several monzonite intrusive bodies (Chapman and others, 1985), and probably flows across dikes varying in composition from andesite to rhyolite, similar to those in the Ganes Creek (OP018) area. During 1937 the Ophir Development Company operated a Kirk-Hillman airplane drill and drilled for 2 miles along the west side of the Innoko River somewhere between the mouth of Ganes Creek to Ophir Creek (Roehm, 1937). Roehm (1937) writes that good results were reported, but there is no indication of futher activity.
  • Age = Quaternary.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Probably inactive

Mining district

District name Innoko

Comments on the workings information

  • Workings / Exploration = During 1937 the Ophir Development Company operated a Kirk-Hillman airplane drill and drilled for 2 miles along the west side of the Innoko River somewhere between the mouth of Ganes Creek to Ophir Creek (Roehm, 1937). Roehm (1937) writes that good results were reported, but there is no indication of further activity.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Roehm, 1937

General comments

Subject category Comment text
Deposit Model Name = Placer Au (Cox and Singer, 1986; model 39a)
Deposit Other Comments = See also Victor Gulch (OP017).

Reporter information

Type Date Name Affiliation Comment
Reporter 07-AUG-01 Cameron, C.E. Northern Associates Inc.

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.