Rex (Anvil Mountain)

Prospect in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10002006
MRDS ID A012851
Record type Site
Current site name Rex (Anvil Mountain)
Related records 10282280

Geographic coordinates

Geographic coordinates: -165.34994, 64.55511 (WGS84)
Relative position This Rex lode prospect is at an elevation of about 550 feet on the southeast flank of Anvil Mountain, several hundred feet west of and above Dry Creek. The map location is just inside the north-central edge of section 7, T. 11 S., R. 33 W., Kateel River Meridian. It is locality 52 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
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Geographic areas

Country State
United States Alaska


Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Calcite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble

Nearby scientific data

(1) -165.34994, 64.55511

Comments on the geologic information

  • Geologic Description = Cathcart (1922) reported several tunnels driven on calcite veins less than a foot thick in marble at this prospect. Although Cathcart did not observe quartz or sulfides, the owner reported that assays from one vein ran 0.15 to 0.2 ounce of gold per ton.
  • Age = Mid-Cretaceous or younger; veins cross cut marble metamorphosed in the mid-Cretaceous.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nome

Comments on the workings information

  • Workings / Exploration = Several tunnels, 25 to 180 feet long, were driven on this deposit.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012851
USGS Alaska Resource Data File ARDF NM293

Bibliographic references

  • Deposit

    Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722, p. 163-261.

Comments on the references

  • Primary Reference = Cathcart, 1922

General comments

Subject category Comment text
Deposit Model Name = Calcite veins in marble.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUL-00 Hawley, C.C. Hawley Resource Group
Reporter 10-JUL-00 Travis L. Hudson Hawley Resource Group