Mizpah Ledge

Prospect in Alaska, United States with commodities Copper, Gold, Lead, Zinc, Silver

Geologic information

Identification information

Deposit ID 10112672
MRDS ID A002957
MAS/MILS ID 0020950097
Record type Site
Current site name Mizpah Ledge

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -149.41696, 60.26512 (WGS84)
Elevation 582
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Seward 002 N 001 W 14 SWSWNW Alaska


Commodity Importance
Copper Primary
Gold Tertiary
Lead Tertiary
Zinc Tertiary
Silver Primary

Materials information

Materials Type of material
Arsenopyrite Unknown
Chalcopyrite Unknown
Galena Unknown
Gold Unknown
Pyrite Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) -149.41696, 60.26512

Ore body information

  • Strike N10E
    Dip 70E
    Width 0.1M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N10E
    Date of Last Modification 881220

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Kennedy, Pullen, And Davis
    Interest 100
    Home office Alaska
    Year 1911

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Inferred 11mt ore
    Total resources 11mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 28.2 g/mt Gold Trace 1982
    Silver Ag 14.1 g/mt Silver Major 1982

Comments on the workings information

  • Workings consist of a 1.5 X 9.1 m. cut with a 8.5 m. adit.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0020950097
USGS Mineral Resources Data System MRDS A002957 MAS references MRDS

Bibliographic references

  • Ownership

    ALASKA KARDEX 095-147

  • Deposit

    B520i p. 155

  • Deposit

    B587 pp. 145-146, plate 3 No. 61

  • Deposit

    MF880A # 84.

  • Deposit

    MLA5-84 218 pp., (Locality S-209).

Reporter information

Type Date Name Affiliation Comment
Reporter 20-DEC-1988 Dwb U.S. Bureau of Mines