Noble Canyon is San Diego County's premiere mountain biking trail. The trail starts at the top of the Laguna Mountains and drops nearly 2,500 feet to Pine Valley. The trail is both very technical and extremely fun in sections. To do the round trip take 3 to 4 hours. The majority of riders will leave a car at the bottom and only do the trail one-way. Don't let the amount of downhill fool you. It is still a difficult trip as a one-way ride.

Noble Canyon is a difficult trail. Only skilled riders should try this trail. Additionally, only skilled riders in great shape should try to do this trail both ways. Because you are in remote area of the back country, you should only do this ride with a partner. That said, have fun.