These treaties resulted in Tribes ceding most of the region and state in exchange for certain reserved rights, including off-reservation rights to fish in all usual and accustomed fishing grounds and the right to hunt and gather on open and unclaimed lands. In the 1850s, many Tribes in the region signed treaties with the United States under duress. Tribes are regularly invited and encouraged to be PSRC members. * Formal members or associate members of the Puget Sound Regional Council.