Mount Wilson

Mount Wilson offers several popular hiking routes. The Mount Wilson Trail from Sierra Madre is one of the most well-known, offering a challenging ascent with significant elevation gain over approximately 14 miles round trip. It's considered strenuous due to its length and steep sections. Another popular option is the Chantry Flat to Mount Wilson Trail, which is also challenging but provides scenic views through Big Santa Anita Canyon. For a less strenuous approach, hikers can start from the Mount Wilson Red Box Road, which offers shorter, more moderate trails leading to the summit area and observatory.

While many routes to Mount Wilson are out-and-back, several loop options can be created by combining different trails. For instance, hikers often combine sections of the Mount Wilson Trail with other paths like the Upper Winter Creek Trail or trails originating from Chantry Flat to form a loop. These typically involve significant mileage and elevation, so planning with a detailed map is recommended.

The terrain on Mount Wilson trails varies but generally includes well-maintained dirt paths, rocky sections, and some steep, exposed areas. You'll encounter a mix of shaded canyons, especially in the lower sections of trails like the Mount Wilson Trail from Sierra Madre, and open, sun-exposed ridges as you gain elevation. The upper sections near the summit can be rocky, and some trails feature switchbacks to manage the steep grades.

While the full ascent to Mount Wilson can be challenging for younger children, the area around the summit and observatory offers family-friendly options. There are shorter, paved paths and dirt roads suitable for leisurely walks, allowing families to enjoy the views and visit the observatory without undertaking a strenuous hike. The picnic areas and the Cosmic Cafe also provide pleasant spots for families to relax.

Yes, dogs are generally permitted on Mount Wilson trails, but they must be kept on a leash at all times. It's crucial to bring plenty of water for your dog, especially on longer, exposed trails, as temperatures can rise significantly. Be mindful of paw protection on hot surfaces or rocky terrain. Always pack out any waste.

Parking is available near the Mount Wilson Observatory, but it can fill up quickly, especially on weekends and holidays. Arriving early in the morning is highly recommended to secure a spot. A Forest Adventure Pass is typically required for parking in the Angeles National Forest, which includes the Mount Wilson area. These passes can be purchased at ranger stations, visitor centers, or various local vendors. Check the Angeles National Forest website for current requirements and purchase locations.

Beyond the panoramic views from the summit, several points along the trails offer stunning vistas. On the Mount Wilson Trail from Sierra Madre, you'll find excellent views of the San Gabriel Valley as you ascend. Near the observatory, the Skyline Park area provides expansive views of the Los Angeles Basin. The observatory grounds themselves offer numerous spots to take in the scenery, particularly from the 100-inch telescope dome area, where you can often see Catalina Island on clear days.

At the Mount Wilson summit area, visitors will find the historic Mount Wilson Observatory, which includes a Visitors' Gallery for the 100-inch telescope, an Astronomical Museum, and the CHARA Interferometry Exhibit. There are also picnic areas available for public use. The Cosmic Cafe operates on weekends from April to December, offering refreshments and a place to rest. Restrooms are also available on site.

To avoid the largest crowds and extreme temperatures, the shoulder seasons of spring (April-May) and fall (October-November) are generally ideal for hiking Mount Wilson. During these months, temperatures are milder, and the trails are less congested than in the peak summer months. While the intro mentions spring and fall as best, focusing on avoiding crowds and extreme weather provides a fresh angle. Weekdays are always less crowded than weekends.

Hiking Mount Wilson in winter is possible but requires special preparation. While the lower elevations may remain clear, the summit and higher trails can experience snow and ice, especially after storms. This can make trails slippery and more challenging. Hikers should carry appropriate winter gear, such as microspikes or crampons, and trekking poles. Always check weather forecasts and trail conditions before heading out, as roads to the summit may close due to snow or ice. Temperatures can drop significantly, so layering warm clothing is essential.

At the summit of Mount Wilson, the Cosmic Cafe is open on weekends from April to December, offering a convenient spot for refreshments. For more extensive dining options, you would need to descend from the mountain. The nearby towns in the San Gabriel Valley, such as Sierra Madre, Pasadena, or Arcadia, offer a wide variety of cafes, restaurants, and pubs.

The Mount Wilson Observatory holds immense historical significance in astronomy. Founded in 1904 by George Ellery Hale, it was home to the world's largest telescopes for decades, including the 60-inch and 100-inch Hooker telescopes. It was here that astronomer Edwin Hubble made groundbreaking discoveries in the 1920s, proving that many nebulae were distant galaxies and that the universe is expanding, leading to the formulation of Hubble's law and fundamentally changing our understanding of the cosmos. Significant solar research, including the discovery of magnetism on the sun, also took place here.