UPPER TSIHALIS UPPER CHEHALIS Upper Chehalis Territory: Western Washington State. PORTALS . Chehalis Tribe : part of whose membership is Upper Chehalis < Oakville, Washington * . >Vol. 7: P. 504 Upper Chehalis Population: United States - 560 S A L I S H TSAMOSAN ADS SEARCH ENGINE COLOSSUS International Directory of Search Engines Ezilon Directory North America