Rick Smith, CEO of TriCo Bancshares,
Rings The NASDAQ Stock Market Opening Bell

Wednesday, September 21, 2006
at NASDAQ's MarketSite
in New York City.

TriCo Bancshares
[TCBK]

Rick Smith, CEO of TriCo Bancshares, presides over the opening bell.

TriCo Bancshares and Tri Counties Bank are headquartered in Chico, California. Tri Counties Bank has a 31-year history in the banking industry. Tri Counties Bank operates 32 traditional branch locations and 22 in-store branch locations in 22 California counties, and as of June 30, 2006, had over $1.8 billion in assets. Tri Counties Bank offers financial services and provides a diversified line of products and services to consumers and businesses, which include demand, savings and time deposits, consumer finance, online banking, mortgage lending, and commercial banking throughout its market area. It operates a network of 61 ATMs and a 24-hour, seven days a week telephone customer service center. Brokerage services are provided at the Bank's offices by the Bank's association with Raymond James Financial, Inc. For further information please visit the Tri Counties Bank web-site at http://www.tricountiesbank.com.

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Click for larger pictures of the NASDAQ MarketSite. Additional Photographs for 9/21/2006 Download Hi-Res Quality Photo of this NASDAQ Market Open - Pictured: Rick Smith, CEO of TriCo Bancshares, rings the Opening Bell These photos are Copyright 2006, The Nasdaq Stock Market Inc. and available for re-publication by the news media only. Any commercial use is strictly prohibited without the prior written consent of The Nasdaq Stock Market Inc. © Copyright 2006, The NASDAQ Stock Market, Inc. Reprinted with the permission of The Nasdaq Stock Market, Inc.