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Hiking in Sam Merrill Trail: trails, map and practical info

Greater Los Angeles • California

Sam Merrill Trail (Greater Los Angeles, California) : hike, 8 km, about 2 hours.

8 km
Distance
2 hours
Duration
Recommended for :

Ready to explore Sam Merrill Trail? Here's everything you need to know before you go!

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1 community photos

Photos: AmeteurAngeleno — CC0 (Wikimedia Commons)

Trail description

The Sam Merrill Trail is a major hiking trail in the Las Flores Canyon of the San Gabriel Mountain Range north of Altadena, California, which leads to the top of Echo Mountain. It was built by Charles Warner and the Forest Conservation Club of Pasadena during the 1930s. After the deluge of 1938 most of the trails that accessed the mountain sides around Echo Mountain and the Mount Lowe Railway had been all but washed away. Sam Merrill found it important to maintain public hiking access to the railway ruins and other portions of the treacherous foothill. During the 1940s he overhauled and maintained the trail. As a young man Merrill had lived with John Muir for a summer, which inspired a lifetime commitment to the outdoors and the Sierra Club. Merrill, who served as Clerk of the Superior Court of Los Angeles, was an active volunteer in the Sierra Club, leading outings for almost twenty years, serving on the Executive Committee of the Angeles Chapter from 1926 to 1935 and on the National Board of Directors of the Sierra Club from 1936 to 1937. When Sam Merrill died in 1948 the Sierra Club named the Echo Mountain Trail after him. The trail originated at the old railway's right of way just above a point called Hygeia Station and climbed by switchback up the steep face of the Echo promontory. In the late 1960s a housing development was established over the trail, and the trailhead was moved to an access alongside the Cobb Estate gateway at the top of Lake Avenue. The portion of the trail which was maintained by Merrill leads an approximate 21⁄2-mile trip directly to Echo Mountain and the ruins of the White City of the Mount Lowe Railway. It is also sometimes referred to as Lower Sam Merrill Trail because a section of the Mount Lowe 8, an old mule trail from the days of the Mount Lowe Tavern, was reopened, giving a continued hike into Grand Canyon and the site of the Tavern, and is referred to as Upper Sam Merrill Trail. The Sam Merrill Trail has been repeatedly mentioned in the Los Angeles Times, including a review of the trail on May 18, 2003. In 1996 the national USA Today newspaper published a list of "10 Great North American Hikes", which included the Sam Merrill Trail as one of them. The list had originally appeared in the October 1996 issue of Men's Fitness magazine.
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Recommended gear for this trail

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LGPO Pick
Elixir Tour Mid WP
Salomon
Elixir Tour Mid WP
4.5 (2847 reviews)
Waterproof mid-height boot ideal for rocky terrain
203.38 $
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Best Value
Trail Ergo Cork
Black Diamond
Trail Ergo Cork
4.4 (1456 reviews)
Comfortable cork grip for long ascents
69.99 $
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Daylite Plus 20L
Osprey
Daylite Plus 20L
4.7 (3215 reviews)
Lightweight and versatile for day hikes
109.99 $
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Actik Core 625
Petzl
Actik Core 625
4.6 (1893 reviews)
USB rechargeable with 600 lumens for early starts
103.95 $
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Most Popular
Wide Mouth 1L
Nalgene
Wide Mouth 1L
4.8 (12540 reviews)
Unbreakable and BPA-free — a hiking essential
23.11 $
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Ready to go?

Everything you need to know before you go

Where?

Address
Not available
GPS coordinates
34.2197, -118.1203123
Phone
Not available

When?

Opening hours
No information
Varies by season
Best season
Fall
Spectacular colors
Best time
Early morning
Less crowded
Weather (next days)
Loading

How much?

Entry fees
Adult
Not available
Child
—
What to bring?

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Gear
Download the PDF checklist
Water & food
2L minimum
No water point on the trail
Bring energy snacks for a 4h+ hike
Good to know
Safety
Download the GPX before you go
Limited cellular coverage on the trail
Slippery after rain
Be careful on rocky sections
In an emergency
Emergency
911
Parking GPS
34.2197, -118.1203123
Center
Not available

Hikers' opinions

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FAQ - Frequently asked questions

Everything you need to know
Allow about 2 hours for Sam Merrill Trail (8 km).
No, Sam Merrill Trail has no visitor centre on site.
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Update : October 2026