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United States
Twentymile Mine

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 Location:
24 km SW from Steamboat Springs, Colorado, United States

  Address:
29515 Routt County Road 27
Oak Creek
Colorado, United States
80467
Phone  ...  Subscription required
WebsiteWeb
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Longwall
  • Continuous


Owners

 
CompanyInterestOwnership
Peabody Energy, Inc. 100 % Indirect

Deposit Type

  • Sedimentary


Summary:


Mining Methods

  • Longwall
  • Continuous


Summary:

Twentymile is a longwall operation. Remotely controlled, the shearer removes 40 inches of coal from the face during each mining pass. Longwall panels at Twentymile are 1,000-feet wide and extend up to three miles long. A 50-foot section of the panel is removed each day, producing an average of 22,000 tons of coal. Twentymile also operates two continuous miners in sections that develop more than 200 feet of entryway per shift, producing 1,400 tons of coal in the process.

Twentymile’s innovative conveyor belt technology is known industrywide. Twentymile was the first to develop a scissorveyor that allows flexibility of the belt structure and eliminates production delays for structure removal as the longwall retreats. Twentymile maintains more than eight miles of underground belt line. A 72-inch wide panel belt and high-speed 60-inch mainline belt have the capacity to move more than 12 million tons of coal a year to the surface.


Crushing and Grinding


Processing



Production:

CommodityUnits201920182017201620152014
Coal (thermal) M tons  ......  Subscription required  ......  Subscription required3.823.56.7
Heat ContentBTU/lb11,20011,20011,20011,20011,20011,200
Subscription required - Subscription is required.


Reserves at December 31, 2019:

CategoryTonnage Commodity
Proven & Probable 5 M tons Coal (thermal)


Heavy Mobile Equipment as of August 4, 2016:
HME TypeQuantity
Continuous miner 2

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 17, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Fact Sheet 2017
Form 10-K 2017
Fact Sheet 2016
Form 10-K 2016
Fact Sheet 2015
Form 10-K 2015
Annual Report 2014
Subscription required - Subscription is required.

Aerial view:

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