Johns Hopkins Inlet

Occurrence in Alaska, United States with commodities Copper, Gold, Zinc

Geologic information

Identification information

Deposit ID 10233957
MRDS ID A013143
MAS/MILS ID 0021110009
Record type Site
Current site name Johns Hopkins Inlet
Alternate or previous names Johns Hopkins Inlet South
Related records 10002241

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -137.07293, 58.88392 (WGS84)
Elevation 6
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
Copper River 034 S 050 E 33 NWNENE Alaska


Commodity Importance
Copper Primary
Gold Tertiary
Zinc Tertiary

Materials information

Materials Type of material
Actinolite Unknown
Albite Unknown
Biotite Unknown
Calcite Unknown
Chlorite Unknown
Goethite Unknown
Graphite Unknown
Hornblende Unknown
Magnetite Unknown
Muscovite Unknown
Oligoclase Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown
Sericite Unknown

Nearby scientific data

Ore Body (1) -137.07293, 58.88392

Ore body information

  • Area 1HA
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin METAMORPHISM
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Total Surface Area (HA) 1
    Date of Last Modification 830408

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1966

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Minerals Only

Land status

Ownership category National Wilderness

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0021110009
USGS Mineral Resources Data System MRDS A013143 MAS references MRDS

Bibliographic references

  • Deposit

    P632 pp. 30, 34, 39, 41

  • Deposit

    OF78-494 p. C192, plates 1A, 1B, 2

General comments

Subject category Comment text

Reporter information

Type Date Name Affiliation Comment
Reporter 14-JUL-1995 Wlg U.S. Bureau of Mines