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San Gabriel Mountains National Monument

Top 6 Mountain Passes in San Gabriel Mountains National Monument

Best mountain passes in San Gabriel Mountains National Monument are located within a vast natural landmark covering over 452,000 acres. This region features diverse terrain, including high-elevation saddles and historic routes. The Angeles Crest Highway serves as a primary route through many of these passes, offering access to various natural features. The monument provides opportunities to experience the unique landscape of Southern California mountains.

Best mountain passes in San Gabriel Mountains National Monument

  • The most popular mountain passes is Vincentโ€ฆ

Last updated: April 26, 2026

Vincent Gap - Mount Baden-Powell Trailhead

Highlight โ€ข Parking

If you want to summit Mount Baden-Powell, this is your trailhead. It is called Vincent Gulch Divide at Vincent Gap. The Pacific Crest Trail crosses over the parking lot. To โ€ฆ

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Glendora Ridge Road

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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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Crystal Lake Climb

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Highway 39 climbs deep into Southern Californiaโ€™s San Gabriel Mountains, starting with a steady grade that twists through rugged terrain and offers sweeping views. After passing multiple switchbacks, a Crystal โ€ฆ

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Windy Gap & PCT junction

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At this saddle, the Windy Gap Trail meets the iconic long-distance Pacific Crest Trail and Mount Islip Trail. The latter one will lead you to the summit of Mount Islip with stunning views.

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Lawlor Saddle

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Great views to the west of the LA basin and the ocean. Mostly level or gently rising trail leads here 2 miles from the road.

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Mill Creek Summit

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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 โ€ฆ

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Popular around San Gabriel Mountains National Monument

Pacific Crest Trail from Mexico to Canada โ€“ 4,200 kilometres of wilderness

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Pacific Crest Trail from Mexico to Canada โ€“ 4,200 kilometres of wilderness

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Alexandra Pavia
April 29, 2025, Crystal Lake Climb

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 Californiaโ€™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 Californiaโ€™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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Alex
January 24, 2025, Mill Creek Summit

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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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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At this saddle, the Windy Gap Trail meets the iconic long-distance Pacific Crest Trail and Mount Islip Trail. The latter one will lead you to the summit of Mount Islip with stunning views.

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At this saddle, the Windy Gap Trail meets the iconic long-distance Pacific Crest Trail and Mount Islip Trail. The latter one will lead you to the summit of Mount Islip with stunning views.

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Frequently Asked Questions

What are some of the most popular mountain passes for hiking in the San Gabriel Mountains National Monument?

Many passes serve as excellent trailheads. For instance, Vincent Gap - Mount Baden-Powell Trailhead is a popular starting point for the Mount Baden-Powell summit. Another well-regarded spot is Windy Gap & PCT junction, where the Windy Gap Trail meets the Pacific Crest Trail and the Mount Islip Trail, offering routes to Mount Islip's summit.

Which mountain passes offer the best scenic views in the San Gabriel Mountains National Monument?

Several passes provide breathtaking vistas. Lawlor Saddle offers great views to the west, overlooking the Los Angeles basin and the ocean. The drive up Mount Wilson Road, while not a traditional pass, leads to Mount Wilson and provides stunning views of the Los Angeles basin and surrounding mountains. Islip Saddle also offers incredible views of both the city side and the Palmdale side of the mountains.

Are there any mountain passes suitable for cycling in the San Gabriel Mountains National Monument?

Absolutely. Glendora Ridge Road is a very scenic mountain road and cycle way, known for its views and challenging hills. Dawson Saddle is also notable for cyclists, as its ascent is considered the number one paved climb in California in terms of elevation gain.

What are the highest mountain passes in the San Gabriel Mountains National Monument?

Dawson Saddle, situated at 7,943 feet (2,421 meters), is the highest point along the Angeles Crest Highway and the second-highest mountain pass in Southern California. Mill Creek Summit, at 4,910 feet, is the highest point along the Angeles Forest Highway.

What historical significance do some of the mountain passes hold?

Mount Wilson Road leads to Mount Wilson, a site active with human passage since Native American times. The historic Mount Wilson Toll Road, built between 1891 and 1936, was crucial for accessing the summit and the Mount Wilson Observatory. Islip Saddle also has historical significance as the point where Highway 39 from Los Angeles used to meet the Angeles Crest Highway.

Are there family-friendly mountain passes or areas to visit?

Yes, Mill Creek Summit is considered family-friendly, offering shaded picnic benches, restrooms, and a convenient rest stop. Vincent Gap - Mount Baden-Powell Trailhead is also categorized as family-friendly, providing access to trails.

What kind of parking and permits are required at these mountain passes?

Many trailheads and recreation sites within the San Gabriel Mountains National Monument, including Vincent Gap - Mount Baden-Powell Trailhead, Cloudburst Summit, and Mount Wilson, require a National Forest Adventure Pass for parking. You can often purchase a day permit from a ranger's office.

What outdoor activities can I do near these mountain passes?

The area around the mountain passes offers diverse outdoor activities. You can find numerous hiking trails, including moderate routes like the Mount Baden-Powell Trail and the Mount Islip, Big Cienega, and Windy Gap Loop. For road cycling, challenging routes like the Mount Gleason Loop are available. You can explore more options on the Hiking in San Gabriel Mountains National Monument and Road Cycling Routes in San Gabriel Mountains National Monument guide pages.

Are there any waterfall hikes accessible from the mountain passes?

Yes, Cloudburst Summit is a popular trailhead for various hikes, including routes to Cooper Canyon Falls via the Pacific Crest Trail. You can find more details on waterfall hikes in the Waterfall hikes in San Gabriel Mountains National Monument guide.

What should I know about visiting mountain passes during winter?

Vehicle access to higher elevation passes like Dawson Saddle is typically restricted during winter due to heavy snowfall. It's important to check road conditions, especially on the Angeles Crest Highway, as closures due to weather or landslides are possible.

What amenities are available at mountain passes for visitors?

Mill Creek Summit is a convenient stop offering shaded picnic benches, a water spigot (treatment recommended), and outlets for charging devices. It also has a nearby parking lot with restrooms.

What do visitors enjoy most about the mountain passes in San Gabriel Mountains National Monument?

Visitors frequently praise the outstanding summit views, the challenging yet rewarding hikes, and the scenic beauty of the drives. Many appreciate the access to the Pacific Crest Trail and the diverse experiences offered, from tranquil viewpoints to strenuous climbs.

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See even more epic mountain passes by checking out these guides in San Gabriel Mountains National Monument:

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