Mount Islip

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.