Sunset Trail Sunset Ridge Trail is truly one of the best trails in the San Gabriel Mountains (Angeles National Forest), and in the SoCal area. This trail is usually linked up with other trails in the area: Sunset Ridge and Middle Sam Merrill Trail by riding to Inspiration Point. The trail is all technical narrow singletrack. This trail is for intermediate and expert riders only, and intermediate riders will likely have to dismount several sections. Watch out for poison oak when it's in season. Most of the trail is north facing with lots of shade; perfect for PO. Access: From Alta Loma Rd in Altadena take Chaney Trail Rd. towards Millard Campground. Before dropping into Millard Campground, park at the closed gate. Take paved road to trailhead, which is well marked on left.
I believe the real name for this trail is just Sunset as there is another trail above La Verne and Marshall Cyn called Sunset Ridge. At the beginning of the trail (or end depending on where you start) there is a marker saying Sunset Trail for this particular trail that you mentioned here.
PF, I rode up Lower Merrill on Thursday (4/20/06) to Sunset Ridge Trail. There are two signs, the newer wooden sign shows Sunset Ridge Trail and the older very faded concrete and metal sign shows Sunset Trail. I changed the first post to reflect the field verified information.