It lies on the western margin of the Cascade Range just above the coastal plains around Puget Sound , and towers over the nearby town of North Bend .
Mount Si ( pronounced sigh ) is a mountain in the U.S. state of Washington .
Mount Si lies on the western margin of the Cascade Range just above the coastal plains around Puget Sound , and towers over the nearby town of North Bend .
Mount Si ( pronounced sigh ) is a mountain in the U.S. state of Washington .