Pinnacle Entertainment, Inc. Announces Conference Call on 2004 First Quarter Results.

Pinnacle Entertainment, Inc. announced today that it will release financial results for its 2004 first quarter on Tuesday, May 4, 2004 prior to the market opening, followed by a conference call on the same day at 11:00 a.m. EDT (8:00 a.m. PDT).

To participate in the conference call, please dial the following number five to ten minutes prior to the scheduled conference call time: (888) 792-8395. International callers please call (706) 679-7241. There is no passcode required for this call.

This conference call will also be broadcast live over the Internet and can be accessed by all interested parties at http://www.pnkinc.com/. To listen to the live call, please go to the Web site at least fifteen minutes early to register, download, and install any necessary audio software.

Hosting the call will be Pinnacle Entertainment's Chairman and CEO Dan Lee, CFO Steve Capp and COO Wade Hundley.

About Pinnacle Entertainment

Pinnacle Entertainment owns and operates casinos in Nevada, Mississippi, Louisiana, Indiana and Argentina, and receives lease income from two card club casinos, both in the Los Angeles metropolitan area. The Company is also building a major casino resort in Lake Charles, Louisiana and has been selected for two casino and related development projects in St. Louis, Missouri, pending approval of the Louisiana Gaming Control Board, and the Missouri Gaming Commission, respectively.

All statements included in this press release, other than historical information or statements of historical fact, are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on management's current expectations and are subject to risks, uncertainties and changes in circumstances that could significantly affect future results. Accordingly, Pinnacle Entertainment cautions that the forward-looking statements contained herein are qualified by important factors that could cause actual results to differ materially from those reflected by such statements. Such statements and factors include, but are not limited to those as may be detailed from time to time in Pinnacle Entertainment's filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

For further information, please contact: Dan Lee, Chairman & CEO, or Steve Capp, CFO, or Wade Hundley, COO, or Investor Relations, Chris Plant or Lewis Fanger, +1-702-784-7777, all of Pinnacle Entertainment, Inc.

CONTACT: Dan Lee, Chairman & CEO, or Steve Capp, CFO, or Wade Hundley, COO, or Investor Relations, Chris Plant or Lewis Fanger, +1-702-784-7777, all of Pinnacle Entertainment, Inc.

Web site: http://www.pnkinc.com/