• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
United States
Congo Project (Sheep Mountain Complex)

This page is not tailored to
devices with screen width under 750 px.
 Location:
11 km S from Jeffrey City, Wyoming, United States

  Project Contacts:
225 Union Boulevard Suite 600
Lakewood
Colorado, United States
80228
Phone  ...  Subscription required
Fax303-974-2141
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in United States
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Uranium
Mining Method
  • Truck & Shovel / Loader
Mine Life12 years (as of Jan 1, 2021)
The Sheep Mountain Project includes the Congo Pit, comprised of the Congo, North Gap, and South Congo areas.


Owners

Source: p. 18
CompanyInterestOwnership
Energy Fuels Inc. 100 % Indirect
The Sheep Mountain Project (Congo Pit and Sheep Underground) held by the Company’s (Energy Fuels Inc.) subsidiary Energy Fuels Wyoming Inc.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Sediment-hosted


Summary:

The host of uranium mineralization for the Project is the Battle Spring Formation. Most of the mineralization in the Crooks Gap district occurs in roll-front deposits(Bendix, 1982). Roll fronts have an erratic linear distribution but are usually concordant with the bedding. Deposits have been discovered from the surface down to adepth of 1,500 feet (Stephens, 1964). The two major uranium minerals are uranophane and autunite. Exploration drilling indicates that the deeper roll-type depositsare concentrated in synclinal troughs in the lower Battle Spring Formation. Three possible sources for uranium have been suggested: post-Eocene tuffaceoussediments, leached Battle Spring arkoses, and Precambrian granites (Granite Mountains).

Structural controls of uranium occurrences along roll fronts include carbonaceous siltstone beds that provide a local reducing environment for precipitation ofuranium-bearing minerals, and abrupt changes in permeability along faults, where impermeable gouge is in contact with permeable sandstones (Stephens, 1964).Uranium has also been localized along the edges of stream channels and at contacts with carbonaceous shales (Bendix, 1982).

Within the Sheep Mountain Project area, uranium mineralization is contained in the lower to middle Eocene Battle Spring Formation. The Battle Spring Formation, consisting of upper and lower members (designated the “A” for the lower and “B” for the upper), is a fluvial deposit. Mineralization is hosted ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Sheep Mountain Project includes the Congo Pit, comprised of the Congo, North Gap, and South Congo areas.

The current mine design for the Congo Pit includes typical highwall heights in the range of 100 to 400 feet and reaches a maximum depth of 600 feet in localized areas in the southeast pit corner. The open pit design employs similar design parameters and mining equipment configurations to those used successfully in past Wyoming conventional mine operations. Highwall design is based upon the performance of past projects in the Sheep Mountain and Gas Hills districts and includes an average highwall slope of 0.7:1 (horizontal: vertical), which reflects the average of a 10-foot bench width and 50-foot highwall at a 0.5:1 slope.

The host formation is exposed at the surface and dips between 9 and 16 degrees to the southeast. The initial pit construction will create access from the open pit mine area to the mine waste and stockpile areas. Subsequent pit extensions will utilize this access. Shallow mineralized areas exist along the north and northwest portions of the pit. As a result, the overall mine sequence begins in the areas where the mineralized zones have the least amount of cover and proceeds essentially along formational dip. The first 6 pits are constructed in a panel along the up-dip portion of the deposit and are the shallowest.

The proposed primary stripping fleet consists of four 637 CAT twin engine scrapers paired with four 631 CA ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Combined production numbers are reported under Sheep Mountain Complex

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Indicated Mineral Resource - GT cutoff: Open Pit GT 0.10 (2 feet of 0.05% eU3O8).
Probable Mineral Reserves - GT cutoff: Open Pit GT 0.10 (2 feet of 0.05% eU3O8).

CategoryTonnage CommodityGradeContained Metal
Probable 3,955 k tons U3O8 0.115 % 9,117 k lbs
Indicated 6,116 k tons U3O8 0.122 % 14,903 k lbs

Commodity Production Costs:

CommodityUnitsAverage
Assumed price Uranium (U3O8) USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2021
OP mining costs ($/ton mined) USD 37.8 *
* According to 2021 study.

2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
OP OpEx $M USD  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of December 31, 2021:
HME TypeModelSizeQuantity
Backhoe ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 31, 2021
....................... Subscription required ....................... Subscription required Subscription required Sep 7, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Corporate Presentation 2017
Form 10-K 2017
Form 10-K 2016
Form 10-K 2015
Pre-Feasibility Study Report 2012
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.