Not to be confused with nearby Cleghorn Mountain or San Diego’s El Cajon Mountain, Cajon Mountain is one of the westernmost summits of the San Bernardino Mountains, providing views of the Cajon Pass, the Inland Empire, the eastern San Gabriels and more. After the long drive up the dirt road, the hike itself is easy, at least until the scramble to get to the peak. On the other hand, the overgrown use trail to the summit provides a sense of adventure after hiking on the fire road.
From the junction of Cleghorn Road and Cajon Road, follow Cajon Road past the metal gate and into a pleasant woodland of black oaks and pines. Heading west, the fire road leaves the woods and gradually descends to a saddle (0.8 mile) with views of the Inland Empire suburbs to the south. The road climbs for half a mile. Just before it reaches another saddle, look for a faint use trail on the left. If you reach the saddle, you’ve passed the trail, although you can continue another 0.1 mile to the road’s end at a clearing with a single antenna structure; from here you can get a nice view of the Cajon Pass.
Follow the use trail steeply uphill and begin doubling back to the east. The trail is overgrown and not always obvious, but using the summit and trail ducks as your guide you’ll be able to pick your way up the ridge to a saddle and then to the peak itself. Except for a thick patch of thorny chaparral near the top (long sleeves and pants), no real bushwhacking is required; if you find yourself battling the brush, retrace your steps.
The summit (elevation 5,360) is marked by a pile of rocks; a register can be found in a coffee can. Despite traffic noise carried up from I-15 and the adjacent train tracks, this a peaceful spot from which to enjoy the panoramic view. A lookout tower once stood here but fell into disrepair and has been removed. The antenna farther west at the end of the road once also stood at the summit.
Text and photography copyright 2016 by David W. Lockeretz, all rights reserved. Information and opinions provided are kept current to the best of the author’s ability. All readers hike at their own risk, and should be aware of the possible dangers of hiking, walking and other outdoor activities. By reading this, you agree not to hold the author or publisher of the content on this web site responsible for any injuries or inconveniences that may result from hiking on this trail. Check the informational links provided for up to date trail condition information.