Los Trancos Trail Loop
Los Trancos Trail Loop
3.4
(25)
85
runners
Los Trancos Trail Loop
01:39
11.9km
440m
Running
The Los Trancos Trail Loop offers a vigorous jogging experience, covering 7.4 miles (11.9 km) with a significant elevation gain of 1439 feet (438 metres). You will find yourself moving through varied terrain, from shaded oak woodlands to open grassland knolls, with a particularly pleasant stretch featuring 21 bridges crossing creeks. This difficult route takes about 1 hour and 39 minutes to complete, providing a rewarding workout amidst diverse scenery.
When planning your visit, remember that the Los Trancos Trail Loop is generally a moderately trafficked path, allowing for a sense of immersion in nature. While specific warnings for permits or seasonal closures are not noted, it is always wise to check the Foothills Nature Preserve website for current access information before you go. Parking is typically available at the preserve's entrance, making trailhead access convenient.
From the upper meadows, you can enjoy expansive views of Portola Valley, Stanford University, and the wider San Francisco Bay Area; on clear days, you might even spot San Francisco's skyscrapers. A unique feature of the preserve is the San Andreas Fault Line, which runs directly through the area, offering an interpretive trail to learn about its geological significance.
Last updated: April 23, 2026
Tips
Your route passes through protected areas
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Waypoints
Start point
Parking
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9.77 km
Foothills Nature Preserve
Highlight • Forest
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11.9 km
End point
Parking
Way Types & Surfaces
Way Types
11.0 km
870 m
Surfaces
10.7 km
531 m
339 m
320 m
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Elevation
Highest point (520 m)
Lowest point (210 m)
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Weather
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Today
Wednesday 6 May
22°C
11°C
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Max wind speed: 10.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How challenging is the Los Trancos Trail Loop for jogging?
This loop is considered difficult for jogging, featuring significant elevation changes. The first two miles involve a steep 1000-foot climb, followed by a 1000-foot descent over the next two miles. The remainder of the route is relatively flatter.
What is the terrain like on the Los Trancos Trail Loop?
The terrain is varied, primarily consisting of singletrack paths. You'll encounter rolling grassland knolls, shaded oak woodlands, and cool forest environments. Some sections are narrow with steep drops. Be aware of poison ivy along the path. A notable feature is a section with 21 bridges crossing over creeks.
How long does it typically take to jog the Los Trancos Trail Loop?
For jogging, the route typically takes around 1 hour and 40 minutes to complete. This can vary based on your pace and how often you stop to enjoy the scenery.
What kind of views can I expect along the route?
The trail offers beautiful and diverse scenery. You'll get amazing views of Portola Valley, Stanford University, and the wider San Francisco Bay Area from its upper meadows. A narrow canyon with a cascading Los Trancos Creek is also picturesque. On clear days, you might even spot the skyscrapers of San Francisco and Mount Diablo.
Are there any entrance fees or permits required for Foothills Nature Preserve?
Yes, the Los Trancos Trail Loop is located within Foothills Nature Preserve, which typically requires an entrance fee per vehicle. It's advisable to check the preserve's official website for current fee structures and any permit requirements before your visit.
Is the Los Trancos Trail Loop dog-friendly?
Regulations regarding dogs can vary within Foothills Nature Preserve. It's best to check the official preserve guidelines before bringing your dog, as rules about leashes and allowed areas may apply.
What is the best time of year to jog the Los Trancos Trail Loop?
The trail can be enjoyed year-round, but spring and fall often offer the most pleasant conditions with milder temperatures. During certain times, fog can be seen trapped in the valley, adding to the atmospheric beauty. Summer can be warm, while winter might bring wetter conditions.
Where can I park to access the Los Trancos Trail Loop?
Parking is available within Foothills Nature Preserve. Specific trailheads and parking lots are usually well-marked within the preserve. Arriving earlier in the day, especially on weekends, is recommended to secure a spot.
Are there any unique natural features on the Los Trancos Trail Loop?
A significant and unique feature is that the San Andreas Fault Line runs directly through the Los Trancos Open Space Preserve, which is connected to this trail area. There's an interpretive trail (the San Andreas Fault Trail) with educational posts explaining the geology and history of the fault.
Does the Los Trancos Trail Loop connect with other trails?
Yes, the route primarily follows the Los Trancos Trail but also passes through sections of the Trappers Fire Road, Madrone Fire Road, Pony Tracks Fire Road, Valley View Fire Road, Steep Hollow Trail, Toyon Trail, Charlie Brown Fireroad, Chamise Trail, Costanoan Trail, Sunrise Trail, Shotgun Fire Road, Arbolejo Overlook, Bay to Ridge Trail, Page Mill Trail, and Coyote Trail.
Are there cafes or amenities near the trailhead?
The trail is located within Foothills Nature Preserve, which aims to provide an immersive natural experience. Therefore, amenities like cafes are not typically found directly at the trailhead. You'll find options in nearby towns like Palo Alto or Portola Valley.