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    Difficulty
    This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
    Moderate
    Elevation
    This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
    432 m
    Distance
    This reflects the return distance of this route as measured by the GPS file.
    8.7 km
    Duration
    This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
    2.5-4h
    User Ratings
    These ratings are completed by users who have completed this trail and not subject to reviews by 10Adventures.
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    Directions to Trailhead

    Echo Mountain via Sam Merrill Trail

    Measurement:

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    Table of contents

    The Echo Mountain via Sam Merrill Trail is a beautifully scenic adventure in the Angeles National Forest of Southern California that features sweeping views of the surrounding landscape. While out on the trail, you will pass through the Cobb Estate, before climbing uphill past the ruins of the Mount Lowe Observatory to reach the summit of Echo Mountain. Hikers should be sure to arrive early, as this trail can become quite busy and congested during peak hours.

    Route Description for Echo Mountain via Sam Merrill Trail

    If you are looking to take in the natural beauty of the San Gabriel Mountains of Southern California, then the Echo Mountain via Sam Merrill Trail is a great route to explore; however, there are also a few downsides to hiking this trail. As the area sees fairly high volumes of foot traffic, you will want to ensure that you arrive early to secure parking and beat the crowds. Additionally, you will need to display a valid adventure pass in your vehicle prior to starting your hike.

    Even though you will almost certainly be sharing the trail with other adventurers, this hike is a great experience that will showcase the history and natural beauty of Angeles National Forest. For starters, you will hike past the ruins of the Echo Mountain House, which was once a luxury resort in the area for the wealthy. You will also be exposed to some incredible views from the summit of Echo Mountain itself, making for a great day-hike that is accessible for a wide range of outdoor enthusiasts.

    Setting out from the trailhead, you will make your way east to enter the Cobb Estate and pass through the gate after roughly 30 m. From here, you will keep straight along the Sam Merrill Trail, continuing to the east for another 0.3 km to cross over Las Flores Creek.

    Here, the trail will begin to climb uphill and turn to the northeast, working through the rugged terrain of the mountains for the next 1.7 km. At this point, you will turn left at a junction and continue along the path for another 2.2 km, enjoying the pleasant views of the surrounding landscape.

    At the next junction, keep to the right as you pass by the ruins of the former Mount Lowe Observatory and the ruins of what was once the Echo Mountain House luxury resort. Shortly after the ruins, you will continue uphill to the summit of Echo Mountain, where you will enjoy some beautiful views of the Southern California landscape. From here, simply turn back and work your way downhill to return to the trailhead where you began your adventure up Echo Mountain via the Sam Merrill Trail.

    Trail Highlights

    Ruins of Echo Mountain House

    Opening in 1894 along the newly built Mount Lowe Railway, Echo Mountain House was a luxury resort that served wealthy tourists looking to explore the San Gabriel Mountains. It contained 80 rooms, a dance hall, casino, astronomical observatory, and even a zoo. Several setbacks eventually led to its closure, including two fires and the government realization that the railway was built on Federal lands. The ruins can still be seen by hikers passing through the area.

    Insider Hints for Echo Mountain via Sam Merrill Trail

    • Arrive early to secure parking and beat the crowds
    • Wear proper hiking footwear
    • Keep your dog on a leash at all times

    Getting to the Echo Mountain via Sam Merrill Trail Trailhead

    The trailhead for this hike can be found at the Cobb Estate, at the corner of E Loma Alta Drive and N Lake Avenue in Altadena.

    Route Information

    • Backcountry Campground:

      No

    • When to do:

      Year-Round

    • Pets allowed:

      Yes - On Leash

    • Family friendly:

      Yes

    • Route Signage:

      Average

    • Crowd Levels:

      High

    • Route Type:

      Out and back

    Echo Mountain via Sam Merrill Trail Elevation Graph

    Weather Forecast

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