Mining Intelligence and News
United States

Goldwedge Mine

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Overview

Mine TypeUnderground
StatusCare and Maintenance
Commodities
  • Gold
SnapshotThe Goldwedge Mine is a fully permitted underground mine with over 600 meters of excavation and a 400 ton per day mill facility with a gravity recovery system.

During 2024, the Goldwedge has been under care and maintenance.

Scorpio believes there is potential to connect the Goldwedge Underground Mine, the Echo Bay West Pit, the Echo Bay East Pit and the new Caldera Splay zone into a single large gold deposit.

The Goldwedge Value Extraction plan is expected in December 2024.

Owners

SourceSource
CompanyInterestOwnership
Scorpio Gold Corp. 100 % Indirect
The Scorpio Gold Corporation holds a 100% interest in the consolidated Manhattan District comprising the Goldwedge property.

Deposit type

  • Sediment-hosted
  • Vein / narrow vein
  • Epithermal

Summary:

The Goldwedge property occurs in west-central Nevada where a series of Tertiary volcanic calderas have cut through a basement complex of lower Paleozoic sedimentary rocks. Gold deposits related to these calderas include the giant Round Mountain Mine (some 10 miles north of Goldwedge), as well as the Northumberland Mine of Newmont Mining Corp. While most of the mineralization at the Round Mountain Mine has been mined from Tertiary volcanic rocks, there is good mineralization in the underlying Gold Hill Formation, which is also a host of mineralization at Goldwedge.

Goldwedge occurs near the southwestern margin of the Manhattan caldera, and all known mineralization to date is hosted by a series of lower Paleozoic sedimentary rocks just outside the caldera boundary. The Caldera is believed to have provided significant structural preparation for the gold mineralization at Goldwedge, and age dating suggests that the mineralization is post-caldera. The deposit is hosted by the Ordovician Zanzibar Formation and the Cambrian Gold Hill Formation, where cut by a series of north-northwest -striking fractures and faults, especially the Reliance shear zone. This shear zone is closely associated with the good grade mineralization defined to date.

Mineralization consists of altered sedimentary host cut by complex anastomosing narrow shear zones with a combination of free gold and disseminated gold in the matrix of the rock. The substantial component of free gold allows for simple gravity recovery of a portion of the gold mineralization. The mineralization contains some very high grade intercepts, with the certain core portions of the mineralization grading in the 6.86 to 34.29 g/t (0.20 to 1.0 oz/ton) range.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

Operational metrics

Metrics20212020201920182017
Daily milling capacity  ....  Subscribe  ....  Subscribe400 tons400 tons400 tons

Production Costs

Commodity production costs have not been reported.

Financials

Units20212020201920182017
Operating Income M USD  ....  Subscribe  ....  Subscribe -3.5   -0.6   -1.2  
After-tax Income M USD  ....  Subscribe  ....  Subscribe -3.5   -0.6   -1.2  

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ........... Subscription required ........... Subscription required Subscription required Nov 28, 2024
....................... Subscription required ....................... Subscription required Subscription required Dec 3, 2024
....................... Subscription required ....................... Subscription required Subscription required Dec 3, 2024

Aerial view:

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