Tiger muskies were first introduced to Mayfield Lake in southwest Washington's Lewis County in 1988 to rebuild a local Coho salmon population by controlling the squawfish that preyed upon them. The program later expanded to additional lakes. Seven lakes in Washington State are currently stocked with Muskies. In addition WDFW has also made one-time plants in several lakes for rough fish control purposes. These include Fazon Lake in Whatcom County, Green Lake in Seattle, Red Rock Reservoir in Grant County south of Potholes Reservoir, and South Lewis County Pond (multiple plantings in this lake). Since these lakes are no longer being stocked, and the planted fish were sterile and only live 8-10 years on average, it is unlikely any specimens still survive in any of those waters.

Remember that effective May 1, 2008, the minimum size limit for Muskies increases to 50 inches. Prior to May 1, 2008 the minimum size limit for tiger muskies in Washington State is 36". Under both regulations there is a one fish per day limit and C-P-R fish don't count against the limit. Please handle them properly.