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Cloud Peak Energy Inc. – ‘S-1’ on 8/12/09 – EX-23.1

On:  Wednesday, 8/12/09, at 4:01pm ET   ·   Accession #:  1047469-9-7620   ·   File #:  333-161293

Previous ‘S-1’:  ‘S-1/A’ on 10/17/08   ·   Next:  ‘S-1/A’ on 10/5/09   ·   Latest:  ‘S-1/A’ on 12/13/10   ·   1 Reference:  By:  SEC – ‘UPLOAD’ on 9/9/09

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  As Of                Filer                Filing    For·On·As Docs:Size              Issuer               Agent

 8/12/09  Cloud Peak Energy Inc.            S-1                   26:4.8M                                   Merrill Corp/New/FA

Registration Statement (General Form)   —   Form S-1
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: S-1         Registration Statement (General Form)               HTML   2.13M 
 2: EX-3.1      Articles of Incorporation/Organization or By-Laws   HTML     18K 
 3: EX-3.3      Articles of Incorporation/Organization or By-Laws   HTML     31K 
 4: EX-10.1     Material Contract                                   HTML     49K 
13: EX-10.10    Material Contract                                   HTML     39K 
14: EX-10.11    Material Contract                                   HTML     44K 
15: EX-10.12    Material Contract                                   HTML     55K 
16: EX-10.13    Material Contract                                   HTML     61K 
17: EX-10.14    Material Contract                                   HTML    113K 
18: EX-10.15    Material Contract                                   HTML     36K 
19: EX-10.16    Material Contract                                   HTML     36K 
20: EX-10.17    Material Contract                                   HTML     37K 
21: EX-10.18    Material Contract                                   HTML     34K 
22: EX-10.19    Material Contract                                   HTML    303K 
 5: EX-10.2     Material Contract                                   HTML     43K 
23: EX-10.20    Material Contract                                   HTML     21K 
 6: EX-10.3     Material Contract                                   HTML     38K 
 7: EX-10.4     Material Contract                                   HTML     41K 
 8: EX-10.5     Material Contract                                   HTML     42K 
 9: EX-10.6     Material Contract                                   HTML     37K 
10: EX-10.7     Material Contract                                   HTML     35K 
11: EX-10.8     Material Contract                                   HTML     58K 
12: EX-10.9     Material Contract                                   HTML     45K 
24: EX-23.1     Consent of Experts or Counsel                       HTML     11K 
25: EX-23.2     Consent of Experts or Counsel                       HTML     11K 
26: EX-23.4     Consent of Experts or Counsel                       HTML     12K 


EX-23.1   —   Consent of Experts or Counsel
Exhibit Table of Contents

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11st Page   -   Filing Submission
"Exhibit 23.1
"Consent of Independent Registered Public Accounting Firm
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Exhibit 23.1


CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We hereby consent to the use in this Registration Statement on Form S-1 of our reports dated August 12, 2009 relating to the financial statements of Rio Tinto Energy America Inc. and Subsidiaries and Cloud Peak Energy Inc. which appear in such Registration Statement. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ PricewaterhouseCoopers LLP
Denver, Colorado
August 12, 2009




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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Dates Referenced Herein   and   Documents Incorporated by Reference

This ‘S-1’ Filing    Date    Other Filings
Filed on:8/12/09RW
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1 Subsequent Filing that References this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 9/09/09  SEC                               UPLOAD10/03/17    1:67K  Cloud Peak Energy Inc.
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Filing Submission 0001047469-09-007620   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

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