South Stillaguamish Mountains

A mountainous sub-region within the North-Central Washington Cascades, bounded by South Fork Stillaguamish River, Kelly Creek, Sultan River, Spada Lake, Pilchuck River, and Puget Lowlands.  Notable landforms include Mt. Pilchuck, Mallardy Ridge, Bald Mountain, Big Four Mountain, Vesper Peak, Sperry Peak, and Morning Star Peak.