Following the Salmon River, Hwy 75 north from Ketchum to Stanley is part of the nationally designated Sawtooth Scenic Byway . The 60-mile drive is gorgeous, winding through a misty, thick ponderosa pine forest - where the air is crisp and fresh and smells like rain and nuts - before ascending the 8701ft Galena Summit . From the overlook at the top, there are views of the glacially carved Sawtooth Mountains, part of the 1180-sq-mile Sawtooth National Recreation Area . It is home to 40 peaks over 10,000ft, over 300 high-alpine lakes, 100 miles of streams and 750 miles of trails.