Trail is a popular route up to the Main Divide Rd from Riverside County. It can be accessed at the back of a Corona neighborhood from Lincoln Ave off Foothill Pkwy. Free parking is well-marked on the Foothill Pkwy cul-de-sac (see map).
The trail begins as a paved path off Foothill Pkwy and goes behind the neighborhood for a bit. Then it turns into a fire road after the neighborhood ends. The beginning mile is tame but at the first hairpin turn, the climb begins and is relentless for miles. The grade is relatively sustained with a couple tougher sections. There are several offshoots of popular downhill single tracks that traverse the fire road.
The views of the IE and San Gabriel Mountains are spectacular, especially once you gain some altitude. In the summer, start early because it gets hot. The trail eventually turns into Blackstar
Canyon Rd and meets up with the Main Divide Rd shortly after at Beeks Place.