Attached files
Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We
consent to the incorporation by reference in Registration Statement
No. 333-158268 on Form S-3 and
Registration Statements Nos. 033-63793, 333-27501, 333-31065, 333-67155, 333-86223, 333-31162,
333-60616, 333-62378, 333-107081, 333-134130, 333-157988 and 333-157990 on Form S-8 of our reports
dated February 26, 2010 with respect to the consolidated financial statements and financial
statement schedule of Pinnacle Entertainment, Inc. and the effectiveness of internal control over
financial reporting of Pinnacle Entertainment, Inc., included in this Annual Report on Form 10-K
for the year ended December 31, 2009.
/s/ Ernst & Young LLP
Las Vegas, Nevada
February 26, 2010
February 26, 2010