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

Yakima Ledge

Prospect in Alaska, United States with commodities Copper, Gold, Lead, Zinc
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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. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10258200
MRDS ID A010561
MAS/MILS ID 0020950224
Record type Site
Current site name Yakima Ledge
Related records 10000398

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -148.29839, 60.96066 (WGS84)
Elevation 200
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seward D-4(quadrangle 1:63,360 scale)

Seward NE(quadrangle 1:100,000 scale)

Seward C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(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 010 N 006 E 13 NE Alaska

Commodities

Commodity Importance
Copper Primary
Gold Tertiary
Lead Tertiary
Zinc Critical Tertiary

Materials information

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

Nearby scientific data

Ore Body (1) -148.29839, 60.96066
ListMap

Economic information

Ore body information

  • Strike N12E
    Dip 80W
    Width 0.5M
    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 N12E:80W
    Date of Last Modification 880427

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category State

Ownership information

  • Type Owner
    Owner J. Brereton, T. Dome, And B. Howell
    Interest 100
    Home office Alaska
    Year 1912

Comments on the workings information

  • Workings consist of a 19.8 m. adit.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 27-APR-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.