The Warm Springs trail begins at the south end of the Thomas Hunting Ground trail and is about 4.5 miles long with an elevation change of 1600 feet. The trail leads to the Seven Oaks Reservoir but is an out-and-back trail, as the Santa Ana Road at the end is currently washed out and impassable. The trail can be narrow at points with few areas for passing other vehicles. Pinstriping from trees is unavoidable. It is recommended to use a high clearance 4-wheel drive vehicle due to deep ruts and narrow areas around washouts. The drive is scenic, and reaching the end of the trail is rewarding, offering a nice secluded streamside lunch spot. It takes about 35-45 minutes to travel the entire trail.