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

Dama Prospects

Occurrence in Alaska, United States with commodities Copper, 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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10000035
MRDS ID A010036
Record type Site
Current site name Dama Prospects
Alternate or previous names Trio, Copper Cliff

Geographic coordinates

Geographic coordinates: -132.1226, 55.05473 (WGS84)

Site location context

Political divisions (FIPS codes)

Prince of Wales-Hyder(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Craig A-1(quadrangle 1:63,360 scale)

Craig SE(quadrangle 1:100,000 scale)

Craig(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Prince of Wales(hydrologic unit)

Southern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass 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

Commodities

Commodity Importance
Copper Primary
Gold Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Analytical data

Result CHIP SAMPLE ACROSS 125 FT OF MINERALIZED ZONE YIELDED 0.11% CU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Greenschist

Nearby scientific data

(1) -132.1226, 55.05473
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Schist Strikes N45w; Dips 70 Sw

Ore body information

  • General form LENSES
    Strike N45W
    Dip 70 SW
    Thickness 38.1M

Controls for ore emplacement

  • Mineralized Zones Follow Trend Of Schist

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Ketchikan District

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Underground
    Length 152.4M

Comments on development

  • EXPLORATION BETWEEN 1903 AND 1905. PROPERTY IDLE SINCE THEN

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SEVERAL SULFIDE LENSES IN ZONE 125 FT WIDE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1983 Hirschmann, M. M. (Elliott, R. L.) 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.