San Jacinto Peak via Marion Mountain Trail at Mount San Jacinto State Park in Riverside County, California is a strenuous 11-mile out-and-back day hike with elevation gain and loss of over 4,400-feet and stunning views at the summit.
The hike starts out at the Marion Mountain Trail trailhead which is located at the back of the cul-de-sac at Marion Mountain Campground. Please note that due to the elevation gain/loss and difficulty rating, only experienced hikers should attempt this trek.
Mile 0 to 2.2: Hike along the Marion Mountain Trail, through various woodlands while continuing to hike uphill towards the next trail junction at mile 2.2.
Mile 2.2: Around mile 2.2, you'll come across a trail junction with the Pacific Crest Trail (PCT) and the Seven Pines Trail. Continue straight, heading east, and follow the PCT for another 0.6-miles to the Deer Spring Trail. This section of the Pacific Crest Trail also passes the Deer Spring campsite.
Mile 2.8: Around mile 2.8 you'll come across another trail junction with the Deer Spring Trail - take a right-hand turn and follow the Deer Spring Trail for the remainder of the hike to San Jacinto Peak, which is roughly 2.7-miles from this junction.
Mile 5.5: After hiking 5.5 miles from the Marion Mountain Trail trailhead, you'll reach San Jacinto Peak.
Camping: Please note that camping is not permitted along the trail, but you can make a reservation to camp literally at the trailhead at the Marion Mountain Campground or down the street at the Fern Basin Campground.
Parking: Parking can be found at the Marion Mountain Campground along Marion Mountain Road.
Pets: Dogs are not allowed on this trail.