INTRODUCTION: This report describes fall fisheries in the mainstem Columbia River and includes a summary of 2009 fall fisheries, 2009 management guidelines, and expectations for 2010 fall fish runs and fisheries. This report is part of an annual series of reports produced by the Joint Columbia River Management Staff of the Oregon Department of Fish and Wildlife (ODFW) and Washington Department of Fish and Wildlife (WDFW) prior to each major Columbia River Compact hearing. The first Columbia River Compact hearing of the 2010 fall management period will begin at 10 AM on Thursday July 29. The hearing will take place at 25 River Street in Cathlamet, Washington. Members of the U.S. v Oregon Technical Advisory Committee (TAC) have reviewed this report.