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Kennecott Energy Coal Mine – Cordero Rojo – Wyoming

Producer of



Powder River Basin, Wyoming, USA


Kennecott Energy (Rio Tinto plc - 100%)

Geology type

Palaeocene (Early Tertiary) coal measures

Mineral type

Power station sub-bituminous coal

Reserve base

321Mt (2005)

Annual production

36.1Mt (2006), 34.2Mt (2005), 35.2Mt (2004), 32.7Mt (2003)

Mining method

Single-seam open pit

Coal processing

Crushing only




Marion 8200 and 8750 draglines

P&H 2300 and Bucyrus-Erie BE290 mining shovels

Caterpillar, Wabco, Euclid and Komastsu Haulpak 154t to 218t haul trucks

P&H and Gardner-Denver rotary drill rigs

Gundlach rolls crushers

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