Best mountain peaks around Rancho Cucamonga are situated at the base of the San Gabriel Mountains, offering access to several notable peaks. This region provides challenging hikes and rewarding panoramic views of the surrounding landscape. The area is known for its distinctive features and visitor appeal, including high-elevation summits and diverse trail experiences.
Last updated: May 12, 2026
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The climb up Mount Baldy is a serious challenge, starting with a moderate grade that quickly intensifies as you ascend. As you pass through the village, the road narrows and steepens, with sections reaching 10-14% gradients and tight switchbacks that demand your focus. The final stretch to the summit, used in the Tour of California, offers a tough alpine ascent that tests even the most seasoned climbers.
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Dedicated trail-goers will take a potato to the summit to leave as an offering to the potato gods. Check out the summit book, and the echo beneath the metal plate on the top of the tank!
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At an elevation of 3,422 feet, this summit provides breathtaking views of the San Gabriel Mountains. The mountain earned its name from the tradition of people leaving potatoes with messages and drawings on them.
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Timber Mountain is an 8,307-foot peak right on the border of Angeles National Forest and San Bernardino National Forest. This peak is a remote-feeling peak in the Cucamonga Wilderness since the summit is at the end of a dead-end trail.
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Cucamonga Peak rises up to 8,862 feet and is one of the most popular peaks that you can access from the Icehouse Canyon Trail. You get an awesome view of the San Gabriel range from the peak, which you should only attempt to run up in the dry season.
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Timber Mountain is at an elevation of 8,307 feet and is four miles southeast of Mount Baldy. It is not the highest peak in the local area, but hikers often describe it as one of the more remote-feeling peaks.
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The view from the top is beautiful and not too hard to access. It is a great way to escape the city. I would recommend hiking in the morning to avoid bugs.
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Enjoy a great panoramic view. Tin sheets have been laid on the floor to flatten it, making it more suited for break, lunches and snacks.
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The region around Rancho Cucamonga offers several notable peaks. Among the most popular are Cucamonga Peak, known for its expansive views, and Mount Baldy (Mount San Antonio), the highest peak in the San Gabriel Mountains. Other rewarding options include Bighorn Peak and Sunset Peak.
Cucamonga Peak stands at 8,862 feet and offers majestic views over the San Gabriel Mountains and the Inland Empire. It's a challenging 14-mile round trip via the Icehouse Canyon Trail, which is known for its beautiful forested path and old cabins. It's also part of the '6-Pack of Peaks' challenge, attracting many hikers.
Both Cucamonga Peak and Ontario Peak are considered strenuous hikes. The route to Cucamonga Peak via Icehouse Canyon is about 14 miles round trip with 4,300 feet of elevation gain. Ontario Peak, often accessed via the same trail, is typically 12-13 miles round trip with 3,700 to 4,000 feet of elevation gain, offering a rewarding alpine experience.
Mount San Antonio, commonly known as Mount Baldy, is the highest peak in the San Gabriel Mountains and the highest point in Los Angeles County, standing at 10,064 feet. Its distinctive 'bald' summit provides spectacular 360-degree views.
Yes, a wilderness permit is required for hiking in the Cucamonga Wilderness, which includes peaks like Cucamonga Peak, Ontario Peak, and Bighorn Peak. Permits can be obtained from the Angeles National Forest or San Bernardino National Forest ranger stations.
For those seeking a more solitary experience away from crowds, Bighorn Peak is an excellent choice. At 8,441 feet, it offers breathtaking views and a challenging power-hike, with fewer visitors compared to other nearby summits.
Potato Mountain Peak, at 3,422 feet, provides beautiful views of the San Gabriel Mountains. It's known for the tradition of hikers leaving potatoes with messages and drawings at the summit. Visitors can also check out the summit book and experience an echo beneath a metal plate at the top.
Sunset Peak is known for its great panoramic views. It offers an intermediate hiking experience with a rewarding outlook, making it a popular spot for enjoying the surrounding landscape.
Hiking is popular year-round, but conditions vary. Mount Baldy is accessible for hiking in summer, with a ski lift operating to the Mt. Baldy Notch. For peaks like Cucamonga Peak, the dry season is recommended, as the north face can retain snow later in the season. Always bring appropriate gear, especially if hiking in winter conditions.
Beyond challenging mountain peak ascents, the area offers a variety of outdoor activities. You can find numerous road cycling routes, such as the 'Pacific Electric Trail loop from Upland', and easy hikes like the 'Red Hill Loop'. For more options, explore the Road Cycling Routes around Rancho Cucamonga or Easy hikes around Rancho Cucamonga guides.
While many of the prominent peaks are challenging, there are easier hiking options available in the broader Rancho Cucamonga area. For example, the 'Red Hill Loop' and 'Euclid Avenue Bridle Path' are listed as easy hikes. You can find more family-friendly routes in the Easy hikes around Rancho Cucamonga guide.
Trails to peaks like Cucamonga Peak often feature forested paths alongside creeks, old cabins, and interesting geological formations in the lower canyons. Higher up, you'll encounter alpine environments and, on clear days, expansive panoramic views of the San Gabriel Range, the Inland Empire, and even distant landmarks like Mount San Jacinto and the Pacific Ocean.


See even more amazing summits around Rancho Cucamonga with these guides: