Specifications - Twentymile Coal Mine, CO, USA

Key Data
Producer of	Steam coal
Location	Colorado, USA
Ownership	Peabody Energy (100%)
Geology type	Upper Cretaceous coal measures
Mineral type	Low-sulphur, low-ash bituminous coal
Reserve base	100Mt-plus in current mine plan area
Annual production	8.7Mt (2005)
Mining method	Single longwall unit with supporting continuous miner development sections
Processing method	Crushing and screening run-of-mine coal before shipment; minor washing to produce industrial-grade products
Employment	320
Key Equipment
Underground	Long-Airdox Electra 3000 shearer
	Deutsche Bergbau Technik face supports, armoured face conveyor, stage loader and crusher
	Joy continuous miners and shuttle cars
	Stamler feeder-breakers
	Fletcher rockbolting rigs
	Continental Conveyor belt conveyors
Transport	Union Pacific Railroad
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