12 Stat. 971 (1855), 2 Kappler 719
Articles of agreement and convention made and concluded by and between Isaac I. Stevens, governor and superintendent of Indian of the Territory of Washington, on the part of the United States, and the undersigned chiefs, headmen, and delegates of the different tribes and bands of the Qui-nai-elt and Quil-leh-ute Indians on the part of said tribes and bands, and duly authorized thereto by them.
ARTICLE 3. The right of taking fish at all usual and accustomed ground stations is secured to said Indians in common with all citizens of the Territory, and of erecting temporary houses for the purpose of curing the same; together with the privilege of hunting, gathering roots and berries, and pasturing their horses on all open and unclaimed lands. Provided, however, That they shall not take shell-fish from any beds staked or cultivated by citizens; and provided, also, that they shall alter all stallions not intended for breeding, and keep up and confine the stallions themselves.
Treaty with the Quinaielt, Etc., 1855 (Treaty of Olympia) (1855), https://digitalcommons.law.uw.edu/wa-treaties/3