Highlight • Summit
Mount Islip
Hiking
5.0
(2)
Mount Islip is a prominent 8,250-foot (2,515 m) peak nestled within the Angeles National Forest in the San Gabriel Mountains of California. This significant summit offers a commanding presence, separating the Crystal Lake basin to the south from the vast Mojave Desert to the north. It is renowned for its exceptional panoramic views and the historical remnants of a fire lookout near its summit.
What truly captivates visitors to Mount Islip are the breathtaking 360-degree vistas from its peak. On clear days, hikers are rewarded with expansive views stretching across the sprawling Los Angeles Basin, the arid beauty of the Mojave Desert, and even distant glimpses of the Pacific Ocean, including Santa Catalina Island and San Clemente Island. This incredible visual reward makes the ascent well worth the effort.
Before embarking on a journey to Mount Islip, it's helpful to know the main access points. Trailheads are conveniently located at Islip Saddle along the Angeles Crest Highway, and also from the Crystal Lake Recreation Area. The terrain can be rugged, and the higher elevations experience cooler climates, so appropriate gear is essential. Hikers should also be aware of any Angeles National Forest Adventure Pass requirements for parking at trailheads.
Mount Islip is a popular destination for hikers and nature enthusiasts, particularly during clear weather when the views are at their best. While hiking is the primary activity, sections of the iconic Pacific Crest Trail (PCT) can be incorporated into a visit, offering a unique detour for those looking to experience a segment of this famous long-distance route. The high country of the San Gabriels provides pleasant temperatures for summer hiking.
Reaching the summit of Mount Islip offers a rewarding sense of achievement, often accompanied by a feeling of peace and solitude, especially on less crowded days. Hikers frequently enjoy exploring the remnants of the old fire lookout, including a rock cabin, which adds a layer of historical interest to the natural beauty of the fir and pine forests. The journey through these shaded stretches provides a refreshing contrast to the open, sun-drenched vistas.
Whether you're seeking a challenging ascent or a scenic day hike, Mount Islip offers a variety of routes, including the Islip Ridge Trail, Big Cienega Trail, and the Windy Gap Trail, which can be combined for diverse loop options. You can explore numerous hiking and trail running routes to this magnificent peak and plan your adventure using komoot to find the perfect path for your skill level and desired experience.
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Tips
March 31, 2022
Hiking
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Nearby routes
Best routes near Mount Islip
5.0
(1)
7
hikers
9.22km
03:15
610m
430m
Embark on the Mount Islip, Big Cienega, and Windy Gap Loop for a moderate hike through diverse alpine scenery in the Angeles National Forest. This 5.7 miles (9.2 km) route challenges you with 1999 feet (609 metres) of elevation gain, typically taking around 3 hours and 14 minutes to complete. As you ascend, you'll pass through remnants of coniferous forests and spot seasonal wildflowers, leading to the summit of Mount Islip. From 8,251 feet, you can enjoy panoramic 360-degree views of the San Gabriel Mountains, and on clear days, even glimpse Los Angeles County and the ocean.
The trailhead for this loop is conveniently located within the Crystal Lake Recreation Area. Before you head out, remember that an Adventure Pass is required for parking your vehicle in this area. Make sure to secure your pass in advance to avoid any delays.
This trail offers more than just views; it also takes you through areas still recovering from the 2002 Curve Fire. Witnessing the landscape's resilience as it regenerates provides a unique perspective on nature's enduring power. The route's combination of challenging ascents and rewarding vistas makes it a notable option for hikers exploring the San Gabriel Mountains.
1
hikers
6.20km
02:20
700m
0m
Hike the Mount Islip Trail for moderate difficulty, 3.9 miles, and panoramic views of the Mojave Desert and Los Angeles Basin.
5.0
(1)
14
hikers
11.6km
04:00
680m
680m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Details
Informations
Elevation 2,480 m
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Max wind speed: 10.0 km/h
Frequently Asked Questions
What are the most popular hiking routes to Mount Islip's summit?
Hikers typically approach Mount Islip from two main trailheads: Islip Saddle along the Angeles Crest Highway, or the Crystal Lake Recreation Area. Popular routes include the Windy Gap Trail, Islip Ridge Trail, and Big Cienega Trail. These can often be combined for diverse loop options, and sections of the Pacific Crest Trail (PCT) can also be incorporated into your hike.
What is the typical difficulty and elevation gain for a Mount Islip hike?
Mount Islip is generally considered a moderately challenging hike. The summit stands at 8,250 feet (2,515 m). Depending on your chosen route, you can expect elevation gains ranging from 1,590 to 2,400 feet over a round trip distance of approximately 7 miles. The terrain can be rugged, so proper footwear is recommended.
Are there any historical landmarks or unique natural features to see on Mount Islip?
Yes, near the summit, you'll find the fascinating remnants of a steel fire lookout tower built in 1927, including a rock cabin and concrete footings. These historical structures add a unique layer to the natural beauty of the fir and pine forests. The mountain itself offers sharp, high peaks and rugged terrain, characteristic of the San Gabriel Mountains.
What are the parking options and permit requirements for Mount Islip trailheads?
Parking is available at Islip Saddle and the Crystal Lake Recreation Area. An Angeles National Forest Adventure Pass is typically required for parking at these trailheads. It's advisable to check current regulations before your visit, as parking can fill up quickly, especially on weekends and during peak seasons.
Is Mount Islip suitable for winter hiking, and what conditions should I expect?
Mount Islip can be hiked in winter, but it requires careful preparation. The higher elevations will experience colder temperatures and can receive significant snowfall, making trails icy or snow-covered. Winter hikers should be equipped with appropriate gear such as microspikes or snowshoes, and be prepared for rapidly changing weather conditions. Always check the latest weather forecast and trail reports before heading out.
Are dogs allowed on the trails to Mount Islip?
Yes, dogs are generally permitted on trails within the Angeles National Forest, including those leading to Mount Islip. However, they must be kept on a leash at all times. Please remember to pack out all pet waste and ensure your dog is capable of handling the trail's length and elevation gain.
Are there any family-friendly trail options for Mount Islip?
While the full ascent to Mount Islip's summit is moderately challenging, families with older, experienced children might find it rewarding. For younger children or those seeking a less strenuous experience, exploring shorter sections of the trails near the trailheads or opting for other, less demanding trails within the Crystal Lake Recreation Area might be more suitable. Always assess your family's fitness level before attempting the full summit hike.
What amenities, like cafes or accommodation, are available near Mount Islip?
Mount Islip is located in a somewhat remote part of the Angeles National Forest. There are limited amenities directly at the trailheads. The Crystal Lake Recreation Area may offer basic facilities. For cafes, pubs, or accommodation, you would typically need to drive to nearby towns outside the immediate forest area. Little Jimmy Campground, featuring a reliable year-round spring, offers nearby camping opportunities.
What wildlife might I encounter on the Mount Islip trail?
The Angeles National Forest is home to diverse wildlife. Hikers might spot various bird species, including raptors, as well as smaller mammals like squirrels and chipmunks. Larger animals such as deer, coyotes, and occasionally even bears or mountain lions inhabit the area, though sightings are less common. Always maintain a safe distance and never feed wildlife.
How long does it typically take to hike to Mount Islip summit and back?
The time required to hike Mount Islip can vary significantly based on your chosen route, fitness level, and how long you spend at the summit. For a typical 7-mile round trip with moderate elevation gain, most hikers can expect the journey to take between 4 to 6 hours. It's always wise to start early to allow ample time, especially if you plan to enjoy the panoramic views from the top.