 The indigenous inhabitants of the area were members of the Quinault tribe along the coast north of Grays Harbor and the Upper and Lower Chehalis tribes of the lower Chehalis River drainage.Other groups included the Copalis, Wynoochee, and Humptulips subtribes of the Upper Chehalis subtribe, and the Satsop subtribe of the Lower Chehalis.The Chehalis, Quinault, Cowlitz, and Queets spoke Coast Salish languages related to other Salishan language groups in the Northwest.