This paved, multipurpose trail along the Sacramento River is indeed a national treasure. An 11-mile segment recently was added to the existing 9-mile portion, making it possible to bike between two Redding landmarks: the swooping Sundial Bridge at Turtle Bay Exploration Park and hulking Shasta Dam on Shasta Lake.
The newly opened trail segment follows an old rail line along the course of Keswick Reservoir. Trailheads are situated at the junction of Iron Mountain Road and Rock Creek Road, Keswick Boat Ramp and along the Keswick Dam Road. Parking is free but limited.
Dog-walkers are welcome on all portions of the trail, and there are many access points.