Best mountain passes in Los Angeles County traverse diverse landscapes, including the San Gabriel and Santa Monica Mountains. This region offers a variety of routes for scenic drives and outdoor recreation. These passes provide access to natural features and offer views across the county. Los Angeles County's mountain passes serve as important pathways through its varied terrain.
Last updated: April 28, 2026
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Popular around Los Angeles County
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Hiking in Los Angeles County
Road Cycling Routes in Los Angeles County
The Crystal Lake climb begins in the Angeles National Forest, offering cyclists a moderately challenging route through some scenic landscapes. As you approach the 7-mile mark, the climb starts to reward your efforts with dramatic views of the winding switchbacks and the canyon below. The final stretch on Crystal Lake Road provides a peaceful, lightly trafficked road, ideal for cyclists to finish the climb on a well-maintained path with stunning views ahead.
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Highway 39 climbs deep into Southern California’s San Gabriel Mountains, starting with a steady grade that twists through rugged terrain and offers sweeping views. After passing multiple switchbacks, a Crystal Lake turnoff, and a gated parking area around mile 12, the road softens slightly, continuing along a scenic ridgeline toward the junction with Angeles Crest Highway. A final moderate push leads you to Dawson Saddle at just under 8,000 feet, a summit raced by the pros and known as one of California’s most difficult ascents.
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Vincent Gap has a restroom and parking and some nice views of the surrounding area. There is a gate beyond the gab heading west that is seasonally closed. Continue past the gates to further your adventure on the scenic Angeles Crest Highway.
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Mill Creek Summit, sitting at 4,910 feet, is the highest point along the Angeles Forest Highway in northern Los Angeles County. In the scenic San Gabriel Mountains, it links Pasadena to Lancaster via the Angeles Crest Highway. This spot is a popular rest area for bikers and Pacific Crest Trail hikers, offering shaded picnic benches, a water spigot near the fire station (treatment recommended), and outlets for charging devices. A nearby parking lot includes a picnic table and restrooms, making it a convenient stop.
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For centuries, the Tataviam people used the pass as a vital trade route through the Santa Clarita Valley. In 1842, the California Gold Rush ignited, turning the pass into a bustling thoroughfare for fortune seekers.
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Glendora Mountain or Glendora Ridge Road is a very scenic mountain road located on the boundary of San Bernardino and Los Angeles counties. It is a great road ride with views and hills that will take your breath away.
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Glendora Mountain or Glendora Ridge Road is a very scenic mountain road located on the boundary of San Bernardino and Los Angeles counties. It is a great road ride with views and hills that will take your breath away.
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During spring migration, this spot transforms into a hotspot for birdwatchers, with thousands of birds (even 20,000!) soaring through a nearby mountain gap, offering a truly awe-inspiring spectacle. Keep an eye out for vibrant lupine flowers, adding splashes of color to the hillside.
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Los Angeles County offers several notable mountain passes. For scenic drives, Glendora Ridge Road is a very scenic mountain road with breathtaking views. Another iconic drive is Mulholland Drive, which offers spectacular views along the Santa Monica Mountains. For outdoor activities, Santa Susana Pass Road connects the Simi Hills and Santa Susana mountains, featuring impressive sandstone formations and massive boulders, ideal for exploration.
Yes, many mountain passes provide access to excellent hiking trails. For instance, Vincent Gap - Mount Baden-Powell Trailhead is a popular starting point for those looking to summit Mount Baden-Powell, with the Pacific Crest Trail crossing this location. The Windy Gap Trail also meets the Pacific Crest Trail at Windy Gap & PCT junction, leading to stunning views from Mount Islip.
The mountain passes in Los Angeles County traverse diverse landscapes. You can expect rugged terrain shaped by the San Andreas Fault near Cajon Pass, and impressive sandstone formations and large boulders along Santa Susana Pass Road. Angeles Crest Highway offers panoramic views, transitioning from forested areas to sparser, high-elevation terrain within the San Gabriel Mountains.
Yes, for some areas, a parking pass is required. For example, to park at Vincent Gap - Mount Baden-Powell Trailhead, you need either a National Parks Pass, an Adventure Pass, or a 5 Dollar day permit from the ranger’s office. Similarly, an Adventure Pass is required for parking and exploring within the Angeles National Forest, which includes areas accessible via SR-39 / San Gabriel Canyon Road.
The best time to visit largely depends on the pass and your planned activity. Many passes, especially those at higher elevations like Angeles Crest Highway, offer pleasant conditions during spring, summer, and fall. However, some sections may be subject to closures due to weather or burn recovery, particularly in winter. Lower elevation passes like Cahuenga Pass can even see snow closures at times.
Yes, some mountain passes offer family-friendly options. Mill Creek Summit is noted as family-friendly and includes facilities and parking. Burt's Cut is also listed as family-friendly and dog-friendly, offering a historical site to explore.
The mountain passes in Los Angeles County provide access to a variety of outdoor activities. You can find excellent opportunities for hiking, road cycling, and mountain biking. For hiking, explore options in the Easy hikes in Los Angeles County guide. Cyclists can find routes in the Road Cycling Routes in Los Angeles County guide, and mountain bikers can check out the MTB Trails in Los Angeles County guide.
Yes, some passes have historical significance. Cajon Pass, for instance, has been a vital pathway for centuries, connecting the Mojave Desert with the Los Angeles area. Along SR-39 / San Gabriel Canyon Road, you can admire the Morris Dam and Morris Reservoir, built in 1935. Burt's Cut is also recognized as a historical site.
Many passes offer stunning viewpoints. Angeles Crest Highway has numerous overlooks providing panoramic mountain scenery. Mulholland Drive features specific overlooks, including one with a view of the Hollywood Bowl. From Lawlor Saddle, you can enjoy great views to the west of the LA basin and the ocean. The observation tower at San Vicente Mountain Park, accessible via 'Dirt Mulholland,' also offers views of the Encino Reservoir.
While specific regulations vary by trail and park, some areas are dog-friendly. For example, Burt's Cut is listed as dog-friendly. It's always recommended to check the specific rules for the trail or recreation area you plan to visit, as leash laws and restricted areas may apply.
The elevations of mountain passes in Los Angeles County vary significantly. Cajon Pass is at about 3,777 feet, while Cahuenga Pass, a significant pass near Hollywood, has a lower elevation of 745 feet. Higher passes along Angeles Crest Highway can reach much greater elevations, leading to diverse landscapes.
While the main passes are well-known, exploring sections like the accessible portions of SR-39 / San Gabriel Canyon Road can offer a scenic out-and-back adventure away from the busiest routes. These areas often provide unique views and a quieter experience, allowing you to discover natural beauty like the Morris Dam and Reservoir.


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See even more epic mountain passes by checking out these guides in Los Angeles County: