Attached files

file filename
10-K - 10-K - CLOUD PEAK ENERGY INC.a2202182z10-k.htm
EX-31.1 - EX-31.1 - CLOUD PEAK ENERGY INC.a2202182zex-31_1.htm
EX-32.2 - EX-32.2 - CLOUD PEAK ENERGY INC.a2202182zex-32_2.htm
EX-32.1 - EX-32.1 - CLOUD PEAK ENERGY INC.a2202182zex-32_1.htm
EX-31.2 - EX-31.2 - CLOUD PEAK ENERGY INC.a2202182zex-31_2.htm
EX-23.2 - EX-23.2 - CLOUD PEAK ENERGY INC.a2202182zex-23_2.htm
EX-21.1 - EX-21.1 - CLOUD PEAK ENERGY INC.a2202182zex-21_1.htm
EX-10.48 - EX-10.48 - CLOUD PEAK ENERGY INC.a2202182zex-10_48.htm

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Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-163295) of Cloud Peak Energy Inc. of our report dated February 24, 2011 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
Denver, Colorado
February 24, 2011




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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM