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United States
Sunday Mine Complex (SMC) Mine

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 Location:
88 km W from Telluride, Colorado, United States

  Project Contacts:
31161 Hwy 90 Road P.O. Box 825
Nucla
Colorado, United States
81424
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WebsiteWeb
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  • Overview
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Overview

StageRestarting
Mine TypeUnderground
Commodities
  • Uranium
  • Vanadium
Mining Method
  • Split-shooting
  • Room-and-pillar
The Sunday Mine Complex consists of the following five individual mines: the Sunday mine, the Carnation mine, the Saint Jude mine, the West Sunday, St. Jude, Carnation, and Topaz.

November 2, 2022 - Western has completed the build-out of its in-house mining capability. Additional employees for the first mining team have been hired over the last two months, facilities have been upgraded, and equipment and vehicles have been acquired and readied for deployment. The initial project will focus on additional development of the GMG Ore body. This will involve ore production and stockpiling of high-grade ore and underground drilling /exploration to define additional production zones. The next project will be similar in scope but on the St. Jude Mine target areas defined during the 2019/2020 work project. Mining operations are targeted to restart in January 2023.


Owners

Source: p. 4
CompanyInterestOwnership
Western Uranium & Vanadium Corp. 100 % Indirect
WUC is the owner and manager of the Sunday Mine Complex Uranium Project through its wholly owned subsidiary, Pinion Ridge Mining LLC (PRML).

Contractors

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Deposit Type

  • Sandstone hosted


Summary:

Geologically, the main hosts for uranium-vanadium mineralization in the Sunday Mine Complex are fluvial sandstone beds assigned to the upper part of the Salt Wash Member of the Jurassic Morrison Formation, with minor production coming from conglomeratic sandstones assigned to the lower portion of the Brushy Basin Member of the Morrison Formation. Mineralization from both members is present at the property, with the mine production coming from the Salt Wash Member. Beds generally strike NW-SE and dip SW, with some exceptions within fault bounded blocks adjacent to Big Gypsum Valley.

According to the USGS Bulletin 1693 (Cox, D.P., and Singer, D. A., eds., 1986), the Deposit Model for the project is Model 30c, Sandstone Uranium – Tabular subtype.

Mineralogy: Uraninite, coffinite, pyrite in organic-rich horizons. Chlorite common.

Texture/Structure Stratabound deposits. Tabular U--intimately admixed with pore-filling humin in tabular lenses suspended within reduced sandstone. Replacement of wood and other carbonaceous material. Roll front U--in crescentic lens that cuts across bedding, at interface between oxidized and reduced ground.

Alteration Tabular--Humic acid mineralizing fluids leach iron from detrital magnetite- ilmenite leaving relict TiO2 minerals in diagenetic ores. Roll front- Oxidized iron minerals in rock updip, reduced iron minerals in rock downdip from redox interface.

Ore Controls Permeability. Tabular--Hu ........


Mining Methods

  • Split-shooting
  • Room-and-pillar


Summary:

The historic mining on the property, was originally by rail, then converted to a trackless underground mine in the 1970’s. Ore extraction used jackleg drilling and a random room and pillar mining method. Split shooting of ore and waste to maintain grade was common.


Crushing and Grinding


Processing


Summary:

Traditionally in southwest Colorado and southeast Utah, uranium and uranium-vanadium deposits were owned or controlled by mining companies of various sizes. Some mines were controlled by the companies that owned the mills, but many mines had owner/lessees that shipped their ore to the regional mills. To which mill to ship depended on the toll contracts and the mineralogy of the uranium and host rocks.

The mills were conventional surface facilities that processed the ore to obtain the uranium. Conventional milling is one of the two primary recovery methods that are currently used to extract uranium from mined ore. A conventional uranium mill is a chemical plant that extracts uranium using the following process:

1. Trucks deliver uranium ore to the mill, where it is crushed into smaller particles before being extracted (or leached). In most cases, sulfuric acid is the leaching agent, but alkaline solutions can also be used to leach the uranium from the ore. (In addi ........



Reserves at July 7, 2015:

CategoryTonnage CommodityGradeContained Metal
Measured 188,243 tons U3O8 0.25 % 935,150 lbs
Measured 188,243 tons V2O5 1.49 % 5,610,899 lbs
Indicated 14,974 tons U3O8 0.24 % 72,683 lbs
Indicated 14,974 tons V2O5 1.49 % 436,097 lbs
Measured & Indicated 203,170 tons U3O8 0.25 % 1,007,830 lbs
Measured & Indicated 203,170 tons V2O5 1.49 % 6,047,000 lbs
Inferred 264,604 tons U3O8 0.36 % 1,906,081 lbs
Inferred 264,604 tons V2O5 2.16 % 11,436,484 lbs



Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Jul 30, 2021
....................... Subscription required ....................... Subscription required Subscription required Jul 7, 2015
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
Technical Report 2015
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