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

Big Eldorado Creek

Producer 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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10000786
MRDS ID A011431
Record type Site
Current site name Big Eldorado Creek
Related records 10209686

Geographic coordinates

Geographic coordinates: -141.94251, 62.1097 (WGS84)
Relative position Best location: Richter and Jones, 1973, USGS I-749; tributary to Chavolda Cr. Accurate within 1000 ft radius.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nabesna A-2(quadrangle 1:63,360 scale)

Nabesna SE(quadrangle 1:100,000 scale)

Nabesna(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Nearby scientific data

(1) -141.94251, 62.1097
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Two placers described in USGS Bull. 622 had dimensions of 600 ft by 12 ft with 6 ft of gravel, and 250 ft by 30 ft with 2 ft of gravel. Gravels up to 10 ft deep reported. Top 2 to 4 ft of diorite bedrock was also mined. This placer is unique to the district in that it is probably a primary concentration of placer gold. All other placers in the district are derived from reworked Tertiary gravels.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic

Comments on exploration

  • Status = Active

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Some of the ground that was mined was frozen. Type of workings: surface

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Model Name = Placer, stream
Deposit Other Comments = See also: Big Eldorado lode prospect (NB074)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-MAR-1994 Leonard, K.R. U.S. Geological Survey
Reporter 07-MAR-1994 Elliott, R.L. U.S. Geological Survey
Reporter 07-MAR-1994 Richter, D.H. 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.