the gitxsan "adaawk", a type of oral history, describe thousands of years of history. migrations into the postglacial nass river basin occurred from three main settlements, including one, called "ts'im'anluuskeexs", on the bell-irving river between the bowser river and treaty creek. some of the "ts'im'anluuskeexs" migrated south, establishing the houses of the gitanyou. others remained and established the houses of the galdo'o.