Mount Hillyer Loop

Parking for the Mount Hillyer Loop is typically available at the Chilao Campground area or near the Horse Flats Campground within the Angeles National Forest. These spots provide convenient access to the trailhead.

No, the Mount Hillyer Loop is generally considered difficult for mountain biking, often rated as Black Diamond (Hard). It features a 'test piece' switchback, a 'stupidly-steep wall,' and technical rock sections. While some parts are flowy, beginners might need to dismount and walk through more challenging sections.

The terrain on this loop is varied. You'll start with a gradual fire road climb that turns to dirt, encounter steep ascents, and enjoy fast, flowy downhill sections, especially into Horse Flats campground. Expect technical rock features, boulder gardens, 'slickrock' areas, and ramped logs. Some areas can be sandy with deep ruts.

The loop offers diverse scenery, winding through meadows, open ponderosa pine forests, and piney forests. You'll get great views of the Chilao campground below. The summit of Mount Hillyer provides sweeping panoramic views of the eastern San Gabriels, including Saddleback Mountain and Mount Wilson. The landscape is also dotted with huge granite boulders. The Mount Hillyer Trail itself is a highlight.

Spring is generally favored for riding this loop due to mild weather and wildflowers. While ridable year-round, be aware of potential snow in winter and high temperatures in summer. Always check current conditions before heading out.

Yes, dogs are generally allowed on trails within the Angeles National Forest, including the Mount Hillyer Loop. However, they must be kept on a leash at all times to protect wildlife and ensure the safety of other trail users.

The Mount Hillyer Loop is located within the San Gabriel Mountains National Monument. While there isn't typically an entrance fee for the monument itself, some areas within the Angeles National Forest may require an Adventure Pass for parking. It's advisable to check the official Angeles National Forest website for the latest regulations regarding parking passes.

Yes, the route incorporates sections of several other trails. You'll ride along parts of the Silver Moccasin Trail (NRT), the Mount Hillyer Trail, and Forest Service Route 3N14. Other segments include the Santa Clara Divide Road, Horse Flats Road, and Loomis Ranch Road.

Be prepared for a challenging ride. The 'stupidly-steep wall' and 'test piece' switchback are notoriously difficult climbs. The downhill sections into Horse Flats campground are fast and flowy but interspersed with technical rock features that will keep you out of your saddle. Ensure your climbing ability and gearing are up to the task. It's a shared-use trail, so be mindful of hikers and rock climbers.

The Angeles National Forest is home to diverse wildlife. You might spot various bird species, squirrels, and possibly deer. Keep an eye out for local flora and fauna, but remember to observe from a distance and not disturb their natural habitat.

Given the trail's difficulty and varied terrain, pack plenty of water, snacks, a repair kit (including spare tubes, pump, and multi-tool), and appropriate safety gear like a helmet and gloves. Sun protection is also crucial, and layers are recommended due to potential temperature changes.