Gilman Peak

Brea, California 92823

Gilman Peak

Gilman Peak Professional Review and Guide

"Gilman Peak’s bald summit, barely poking over lesser ridges, affords a breathtakingly spacious view of Southern California on a clear day. To the southwest lies the wide mouth of Santa Ana Canyon, scored by a broad flood channel carrying runoff that originates far inland amid the San Bernardino Mountains.

Beyond, the vast urban plain of Orange County, resting on a vast sheet of alluvium, slopes gently toward the ocean. Northward, the gaunt San Gabriel Mountains, snow-capped in winter, rise boldly over foreground hills and valleys. In the southeast, the Santa Ana Mountains form a broad, dusky blister on the horizon. **Note that at the time of this writing, the North Ridge Trail is temporarily closed due to severe erosion."

More Gilman Peak Professional Reviews and Guides

"Gilman Peak is a rounded 1,685-foot peak on the western side of Chino Hills State Park. It is the second highest peak in the park, second to 1,781-foot San Juan Hill. This trail begins near the mouth of Telegraph Canyon, and follows North Ridge to the bald peak.

From the open summit, the vistas extend across four counties—Los Angeles, San Bernardino, Riverside, and Orange. The views include the winter snow-capped San Gabriel Mountains in the north, the Santa Ana Mountains to the southeast, and the Orange County basin to the ocean."

"The three reasons for Gilman Peak’s success at delivering views are location, location, and location. The peak is located at the far frontier of three counties: Los Angeles, Orange and San Bernardino. Parts of a fourth county—Riverside—can be viewed from the peak also. Surrounded by all manner of residential, commercial and industrial developments, as well as four freeways, the wilder parts of the Chino Hills are indeed an island on the land. The range’s “island” nature is apparent to the hiker on the trail to Gilman Peak."

"This strenuous hike loops from a high ridge to a cool canyon, offering a sampling of these ecosystems. The route begins at the state park’s west end and climbs up to Gilman Peak along North Ridge. The return from the peak drops down a one-mile trail into Telegraph Canyon, then runs parallel to the wooded drainage back to the trailhead.

The long canyon is the centerpiece of the park, stretching from Carbon Canyon Regional Park to Aliso Canyon by the state park headquarters (Rolling M Ranch). The canyon is a rich riparian corridor bounded by chaparral-clad hillsides."

Gilman Peak Reviews

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Great hike, amazing view. The hike to Gilman Peak is longer than I expected, so plan accordingly with the sunlight. I am very new to this and I could handle hike. However, it is clear that this trail is used primarily for mountain bikers. Be aware if you are using your ipod, they come down the hill fast.

Gilman Peak Photos

Trail Information

Nearby City
1,400 feet
Elevation Gain
Trail Type
Skill Level
4 hours
Best: October through June
Local Contacts