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  3. Mineral Resource Data System (MRDS)

Mizpah Ledge

Prospect in Alaska, United States with commodities Copper, Gold, Lead, Zinc, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

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)

Site location context

Political divisions (FIPS codes)

Kenai Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seward B-7(quadrangle 1:63,360 scale)

Seward SW(quadrangle 1:100,000 scale)

Seward(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Kenai Peninsula(hydrologic unit)

Kenai Peninsula(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Chugach National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

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

Commodities

Commodity Importance
Copper Primary
Gold Tertiary
Lead Tertiary
Zinc Critical 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
ListMap

Economic information

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:70E
    Date of Last Modification 881220

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

Bibliographic references

Reporter information

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

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.