4.9
(8418)
17,862
runners
02:13
17.8km
460m
Running
If you are seeking a truly challenging jogging experience, the Cerro Seco Loop offers a difficult 11.0-mile (17.8 km) route with significant rewards. You will gain 1523 feet (464 metres) in elevation over an estimated 2 hours and 13 minutes, pushing your limits on this strenuous trail. The path ascends…
Last updated: April 23, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Valles Caldera National Preserve
Waypoints
Start point
3.39 km
Highlight (Segment) • Trail
Tip by
17.8 km
End point
Way Types & Surfaces
Way Types
11.7 km
5.95 km
Surfaces
17.7 km
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The Cerro Seco Loop is generally considered a challenging and strenuous trail, making sustained jogging difficult. It features an unpaved, natural surface with steep grades and significant elevation changes, ranging from 8,394 to 9,706 feet. While some highly fit individuals might attempt to run sections, it's more commonly recommended as a hard hike.
Yes, the Cerro Seco Loop is located within the Valles Caldera National Preserve. You will need to pay a park entrance fee and obtain a backcountry vehicle pass. This pass must be reserved in advance through Recreation.gov, as vehicular access is limited to 40 public vehicles per day. You can find more information on the official park website: nps.gov.
Access to the trailhead requires a backcountry vehicle pass for the Valles Caldera National Preserve, which must be reserved in advance. Parking is available at designated areas within the preserve for those with a valid pass. Remember that vehicular access to the backcountry is closed annually from November 15 to May 14.
The best time to visit is typically outside of the winter months, as the backcountry is closed to vehicular traffic from November 15 to May 14. Late spring, summer, and early fall offer the most accessible conditions, though you should always check current weather and trail conditions before heading out.
The loop features an unpaved, natural surface with significant elevation changes and steep grades. It ascends a narrow drainage and circles the Cerro Seco lava dome. Expect a strenuous experience due to the challenging terrain and high altitude.
As you ascend, you'll get good views of Valle Seco and the northern rim of the caldera. Later stages of the trail offer the best vistas, including views of Redondo Peak. The route provides a scenic journey through the preserve's unique volcanic landscape.
It is recommended to hike the Cerro Seco Loop counterclockwise. This direction can offer a more manageable ascent and better appreciation of the views as you progress.
Keep an eye out for pikas, small mountain mammals native to the area. The Valles Caldera National Preserve is also home to various other wildlife, so you might spot deer, elk, or different bird species.
Information regarding dog policies specifically for the Cerro Seco Loop within Valles Caldera National Preserve is not provided in the available data. It's best to check the official nps.gov website for the Valles Caldera National Preserve to confirm their current pet regulations before your visit.
Yes, the route also passes through sections of the Cerro Seco Trail, VC08, VC06, San Antonio Mountain Trail, and VC10, offering connections to other parts of the preserve's trail system.
The Cerro Seco Loop is approximately 17.76 km (11.2 miles) long and typically takes around 2 hours and 13 minutes to complete for jogging. However, given its difficult rating and strenuous terrain, hiking it may take considerably longer, especially if you stop to enjoy the views.
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