| Shadow Lake Length: 15 miles Tread: Singletrack Difficulty: Most Difficult Description: Popular intermediate/advanced loop with a spur up to Shadow Lake. Most of the route is singletrack. Trailheads are at Sweeney Switchbacks and Spiro Trail. |
| Shadow Lake Length: 15 miles Tread: Singletrack Difficulty: Most Difficult Description: Popular intermediate/advanced loop with a spur up to Shadow Lake. Most of the route is singletrack. Trailheads are at Sweeney Switchbacks and Spiro Trail. |