Its boundaries were established by the 1855 Treaty and by Executive Order of President U.S. The Tulalip Reservation was reserved for the use and benefit of Indian tribes and bands signatory to the Treaty of Point Elliott of January 22, 1855. The Reservation is rich with natural resources: marine waters, tidelands, fresh water creeks and lakes, wetlands, forests and developable land. The Tulalip Reservation exterior boundaries enclose a land-base of 22,000 acres, more than 50 percent of which is in federal trust status. The Tulalip Tribes is a federally-recognized Indian tribe located on the Tulalip Reservation in the mid-Puget Sound area bordered on the east by Interstate 5 and the city of Marysville, Washington on the south by the Snohomish River on the north by the Fire Trail Road (140th) and on the west by the waters of Puget Sound.