Muir Peak and Eaton Canyon Loop

This loop is considered difficult, primarily due to its significant elevation gain of over 1,300 meters and a total distance of approximately 23 kilometers. While the Eaton Canyon section can be moderate, the ascent to Muir Peak involves steep, rugged terrain. It's a strenuous hike best suited for experienced hikers.

The trail offers a diverse range of sights. You'll encounter the riparian environment of Eaton Canyon Creek and hike along the Eaton Canyon Trail, leading to a picturesque 40-foot waterfall. As you ascend, you'll pass Inspiration Point, and ultimately be rewarded with expansive views from the View from Muir Peak, overlooking the San Gabriel Valley and surrounding mountains.

While there isn't one single official starting point for a combined loop, many hikers begin near the Eaton Canyon Nature Center. Parking can be found in designated lots there, but it fills up quickly, especially on weekends. Arriving early is highly recommended to secure a spot.

Yes, dogs are generally allowed on trails within the Angeles National Forest, including this loop. However, they must be kept on a leash at all times. Be aware that the Eaton Canyon section can involve creek crossings, and the Muir Peak ascent is strenuous, so consider your dog's endurance and paw safety.

For day-use parking at many trailheads within the Angeles National Forest, including those that access this loop, a Adventure Pass is often required. You can purchase these passes at ranger stations, visitor centers, or various local vendors. There is no specific hiking permit required for the trail itself.

The ideal times to hike this loop are during the spring and fall months when temperatures are milder. Spring brings lush greenery and flowing water in Eaton Canyon. Summer can be very hot and exposed on the ascent to Muir Peak, while winter can bring colder temperatures and potential snow at higher elevations, requiring appropriate gear.

The terrain is quite varied. The Eaton Canyon portion features a wide wash with numerous creek crossings, often requiring hikers to get their feet wet, and a gentle grade through riparian woodlands. As you climb towards Muir Peak, the trail becomes steeper and more rugged, traversing chaparral and exposed mountainous sections with rocky paths.

Given its distance of approximately 23 kilometers and over 1,300 meters of elevation gain, this loop typically takes around 9 to 10 hours to complete for an average hiker. It's a full-day commitment, so plan accordingly with an early start.

Yes, the route utilizes sections of several established trails. You'll find yourself on parts of the Mount Wilson Toll Road, Idlehour Trail, Eaton Canyon Trail, and Mt. Lowe Firebreak, among others. This combination creates the challenging and scenic loop to Muir Peak.

For this strenuous hike, essential items include plenty of water (at least 3-4 liters per person), high-energy snacks, sturdy hiking boots (waterproof for creek crossings in Eaton Canyon), sun protection (hat, sunscreen, sunglasses), layers of clothing, a map or GPS device, and a first-aid kit. Trekking poles can also be very helpful for the steep ascents and descents.

The Eaton Canyon section, especially to the waterfall, can be extremely crowded, particularly on weekends and holidays. To avoid the busiest times, start your hike very early in the morning on a weekday. The more strenuous ascent to Muir Peak generally sees fewer people, offering a more solitary experience.