Near Yreka in the Klamath National Forest, the Klamath National Forest has 300 miles of mountain bike trails through a variety of natural settings. The Carter Meadows - Trail Creek Loop is a 11 mile route combining singletrack and dirt roads through one of the nicest settings in the KNF. The loop passes rugged mountains, meadering creeks and open meadows. From its beginning at a ridgetop trailhead on the Scott River/Salmon River divide, the route drops through the trees for a mile of single-track down to the meadow. It then picks up a lightly traveled dirt road, continuing downward for about 5 miles to the Trail Creek Campground. From there, you can return on the highway to the summit. For an alternative route through the lower meadows, be on the lookout for an old put to bed road across the creek from the trailhead at Trail Gulch.
To reach mountain biking at the trailhead, follow US 5 north to Weed. About 0.3 miles north of Weed, take Stewart Springs Road to Old SR 99. Proceed north on Old SR 99 to Callahan-Cecilville Highway. The Carter Meadows Summit is approximately 12 miles west of Callahan on the Callahan-Cecilville Highway. Right at the crest, pull into the trailhead parking site on the south side of the highway.
Overall, Carter Meadows is the 59th most popular mountain bike trail of all 132 mountain biking rides in California.