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Lepsoe

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. 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 10002883
MRDS ID A015369
Record type Site
Current site name Lepsoe
Related records 10282229

Geographic coordinates

Geographic coordinates: -148.08296, 64.8966 (WGS84)
Relative position The Lepsoe prospect is at an elevation of 1,600 to 1,800 feet along the ridge northeast of Nugget Creek (Hill, 1933, p. 152). It is approximately 1.5 miles north-northwest of the top of Ester Dome, in the SW1/4 sec. 24, T. 1 N., R. 3 W., Fairbanks Meridian.

Site location context

Political divisions (FIPS codes)

Fairbanks North Star(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fairbanks D-3(quadrangle 1:63,360 scale)

Fairbanks N(quadrangle 1:100,000 scale)

Fairbanks C(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

Nearby scientific data

(1) -148.08296, 64.8966
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Claims were staked on a 20-foot-wide quartz vein that strikes N. 40 W. and parallels a granite porphyry dike (Hill, 1933, p. 152). The Cretaceous granite has intruded the Fairbanks Schist, which is composed of quartz-muscovite schist, quartzite, and chlorite-quartz schist (Newberry and others, 1996).
  • Age = Associated with a Cretaceous granite porphyry dike.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the workings information

  • Workings / Exploration = Two claims were staked prior to 1933, but very little work was done (Hill, 1933, p. 152).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Hill, 1933

General comments

Subject category Comment text
Deposit Model Name = Gold-quartz vein associated with a granite porphyry dike
Deposit Other Comments = In 1933, the claims were owned by Helbarth Lepsoe (Hill, 1933, p. 152).

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-2001 J.R. Guidetti Schaefer Avalon Development Corporation
Reporter 31-JUL-2001 C.J. Freeman 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.