This trail system, on County Highway Z just south of State Highway 59, goes through a hardwood forest with mostly hilly terrain. Three color coded trails ranging from 2 to six miles. Parking, water, and vault toilets are available. The trails in this system are single-track mountain bike trails that are generally more difficult than the John Muir Trails.
- Brown Loop, moderate, 2 miles: Skirt in and out of pines and hardwoods, pass a kettle lowland, then after joining up with the orange loop, proceed uphill along a moraine and back downhill to the trail head.
- Orange Loop, moderate/hard, 4 miles: Traverse the contours of the glacial geography, generally uphill to the scenic overlook where the Connector trail meets the Carlin trails. Then get ready for lots of ups and downs until meeting back with the brown loop.
- Green Loop, hard, 6 miles: This trail is continuous with the orange, until it splits off on the southern half of the loop. Here you are in for several difficult ups and downs.