premise: Mount Hood is in the Southwest.
hypothesis: Mount Hood , called Wy'east by the Multnomah tribe , is a potentially active stratovolcano in the Cascade Volcanic Arc of northern Oregon . It was formed by a subduction zone on the Pacific coast and rests in the Pacific Northwest region of the United States . It is located about 50 mi east-southeast of Portland , on the border between Clackamas and Hood River counties .