Lake Washington is the largest of the three major lakes in King County, and the second largest natural lake in the State of Washington. Lake Washington’s two major influent streams are the Cedar River at the southern end, and from the north, water from Lake Sammamish via the Sammamish River. Featured Species: Sockeye Salmon, Rainbow Trout, Cutthroat Trout, Smallmouth Bass, Perch Map Features: Lake Profile Fishery Information Fishing Tips and Techniques 12 Accesses with Driving Directions 25 Proven Fishing Areas Marked