Overview Jurupa Mountain Trail is a 7.5 mile out and back trail located near Fontana, California. The trail is primarily used for hiking. Reviews Photos Tracks Carlos Abrille (232007) about 1 year ago N/A: 402 Completed 356 Reviews Note the location shown on the map is not correct. It's actually on the West side of Sierra Ave. The trails are not clearly marked. So when you get there at the park. There's no telling where it starts. Confusing where to go because none of the trails have any signage. The trails are steep and the dirt are light (gets dusty when there's a breeze). The disappointment hiking this trail you'll discover, its another "Trail of Shame" the boulders have been vandalized with graffiti.