• 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
Cordero Rojo Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
155 km NE from Casper, Wyoming, United States

  Regional Office:
P.O. Box 1449
Gillette
Wyoming, United States
82717
Phone  ...  Subscription required
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
  • 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

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (thermal)
Mining Method
  • Truck & Shovel / Loader
  • Dragline
Production Start...
Mine Life18 years (as of Jan 1, 2017)


Owners

Source: p. 1
CompanyInterestOwnership
Navajo Transitional Energy Company, LLC (operator) 100 % Indirect
The Cordero Rojo Mine is operated by the Cordero Mining LLC.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Sedimentary


Summary:

The Cordero Rojo Mine extracts thermal coal from the Wyodak Seam, which ranges from approximately 55 to 70 feet in thickness.

General Geology and Coal Resources
Stratigraphic units include, in descending order recent (Quaternary age) alluvial and eolian deposits, the Eocene age Wasatch Formation (the overburden), and the Paleocene age Fort Union Formation (which contains the target coal seam).

Surficial deposits in the general analysis area include alluvial and eolian deposits and weathered Wasatch Formation. Alluvial deposits occupy the Belle Fourche River valley and the lower portions of tributary draws where they join the river.

The Eocene Wasatch Formation forms most of the overburden in the general analysis area. The boundary between the Wasatch Formation and the underlying Paleocene Fort Union Formation is not distinct. From a practical standpoint, the top of the mineable coal zone is considered as the contact between the two formations. The regional dip in this area is to the west; as a result, the overburden thickness is generally thinner to the east and increases to the west.

The Fort Union Formation is divided into three members: the Tongue River, the Lebo, and the Tullock, in descending order.

The mineable coal seams in the Powder River Basin are part of the Tongue River Member of the Fort Union. At the Cordero Rojo Mine there is one mineable coal seam. Locally, this coal zone is referred to as eith ........


Mining Methods

  • Truck & Shovel / Loader
  • Dragline


Summary:

Cordero began operations in 1976 and currently has a permitted mining capacity of 65 million tons per year in conjunction with the Caballo Rojo Loadout. Mining is carried out primarily by dragline operations, with truck/shovel utilized to move coal.

Coal is mined using conventional surface-mining methods and shipped from an onsite railroad loading facility to electric utilities and industrial customers in the west, midwest, and southern, United States.

The Cordero Rojo Mine uses a combination of dragline and truck shovel mining methods.

Surface mining typically involves the removal of topsoil and drilling and blasting the overburden with explosives. The overburden is then removed with draglines, trucks, shovels, and dozers. Trucks and shovels then remove the coal. The final step involves replacing the overburden and topsoil after the coal has been excavated, reestablishing vegetation into the natural habitat and making other changes designed to provide local community benefits.


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2021202020192018201720162015
Coal (thermal) tons  ......  Subscription required  ......  Subscription required  ......  Subscription required12,609,41316,393,56918,332,04622,871,976
Heat ContentBTU/lb8,4408,3938,421
Sulfur%0.290.30.3
All production numbers are expressed as ROM coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Coal tonnes mined  ......  Subscription required  ......  Subscription required11,906,683 tons of ROM coal12,609,413 tons of ROM coal16,393,569 tons of ROM coal18,332,046 tons of ROM coal
Subscription required - Subscription is required.

Reserves at December 31, 2017:

CategoryTonnage Commodity
Proven 246.5 M tons Coal (thermal)
Probable 52.5 M tons Coal (thermal)
Proven & Probable 299 M tons Coal (thermal)


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2017:
HME TypeModelQuantity
Dozer ....................... Subscription required
Dragline ....................... Subscription required
Drill ....................... Subscription required
Excavator ....................... Subscription required
Shovel ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 1, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Other 2018
Other 2018
Environmental Assessment 2017
Form 10-K 2017
Other 2017
Corporate Presentation 2016
Form 10-K 2016
Other 2016
Form 10-K 2015
Other 2015
Other 2014
Environmental Assessment 2007
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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