Northwest Coast dancing blankets document history, assert clan identity, and record stories for Indigenous peoples of the Northwest Coast of Alaska and Canada. They are worn as ceremonial regalia during celebrations, potlatches, and significant life events, often commissioned by specific persons or clans. These textiles are finger twined on an upright gravity hung loom. Historically, the warp is made of mountain goat wool and yellow cedar bark, the weft hand-dyed with wolf moss, hemlock, copper and urine. Contemporary works use merino wool and both naturally & commercially dyed yarns. The warp is thigh-spun and can take up to 300 hrs to spin the required amount of warp for a full size blanket. Patterns are adapted Formline. A full size blanket can take up to 2500 hours to complete.