CHEHALIS, a city of Washington, U.S.A., 25m. S. by W. of Olympia, 4m. S. of Centralia (q.v.) ; the county seat of Lewis county. It is on Federal highway 99, and is served by the four trans-Continental railways which serve Centralia, and also by the Cowlitz, Chehalis and Cascade railway. Its manufacturing indus tries include saw and shingle mills, brick and tile works, a cannery, a creamery and condensed-milk plants. The population in 193o was 4,907.