The Smallmouth bass fishing is rated fair to good below Prosser in the spring and summer. Whitefish angling is done during the winter months. The best section of the Yakima in Benton County for Whitefish is from Prosser to W. Richland and in the vicinity of Horn Rapids dam, where there is a boat launch site. Angling for whitefish is good in October and November. Smallmouth and channel cat fishing is excellent in the lower Yakima River. Channel cats average 1 to 2 pounds but can often range to 8 pounds or more. Smallmouth average 1 to 3 pounds. You can also catch largemouth bass and crappie on the lower Yakima near Richland.