3.4
(21)
41
runners
03:11
19.0km
1,330m
Running
Challenge yourself on the difficult 11.8-mile Ajax Peak and Imogene Pass Loop, featuring extreme altitude, stunning alpine views, and histor
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
1.62 km
Highlight • Viewpoint
Tip by
6.92 km
Highlight • Summit
9.81 km
Highlight • Mountain Pass
13.1 km
Highlight • Historical Site
19.0 km
End point
Parking
Way Types & Surfaces
Way Types
9.05 km
5.08 km
2.57 km
2.24 km
< 100 m
Surfaces
11.0 km
6.66 km
1.31 km
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Tuesday 20 October
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12 %
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Max wind speed: 9.0 km/h
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This route was planned by komoot.
This loop is considered extremely difficult for jogging. It features significant elevation changes, steep grades (over 20% in parts), and high altitudes, with Imogene Pass reaching 13,114 feet (3,997 meters). Even participants in the annual Imogene Pass Run often hike significant portions due to the challenging conditions. Exceptional fitness, sure-footedness, and alpine experience are essential.
The terrain is very challenging. Much of the route follows the Imogene Pass Road, which is unpaved, steep, rocky, and narrow. You'll encounter switchbacks, rock slabs, and scree-covered slopes. The path to Ajax Peak itself is narrow but well-defined, ascending steeply through meadows and scree. Sturdy shoes with good grip are highly recommended.
While komoot estimates a jogging duration of around 3 hours and 11 minutes, most individuals will find this loop takes considerably longer due to its extreme difficulty, high altitude, and rugged terrain. Many sections will require hiking, even for experienced runners. Plan for a full day, especially if you want to enjoy the views and explore the historical sites.
The loop offers spectacular alpine scenery and historical sites. Key highlights include breathtaking views of Bridal Veil Falls and the power plant, reaching the summit of Ajax Peak for panoramic vistas, crossing Imogene Pass, and exploring the historic Tomboy Ghost Town. You'll also see other mining ruins and colossal Rocky Mountain peaks.
Specific parking information for this trailhead is not provided in the available data. However, as the loop starts and ends near Telluride, it's advisable to research parking options within or just outside Telluride, keeping in mind that parking can be limited, especially during peak season.
The Ajax Peak and Imogene Pass Loop is located within the Uncompahgre National Forest. Generally, there are no specific permits required for day hiking or jogging on established trails within the National Forest, nor are there entrance fees. However, always check the official US Forest Service website for the Uncompahgre National Forest for any current regulations or alerts before your visit.
While specific regulations for dogs on this exact loop are not detailed, trails within the Uncompahgre National Forest typically allow dogs. It is crucial to keep your dog on a leash at all times to protect wildlife and ensure the safety of other trail users. Be prepared for rugged terrain and high altitude, which can be challenging for pets as well.
The best time to visit for jogging or hiking is typically late summer to early fall (July through September) when the high mountain passes are usually free of snow. However, weather in the San Juan Mountains can change rapidly, even in summer. Always check the forecast and be prepared for all conditions, including potential afternoon thunderstorms.
Yes, the route utilizes and intersects with several other paths. Significant portions follow the Imogene Pass Road and also pass through sections of the Black Bear Pass Road, Tomboy / Imogene Pass Road, Marshall Creek Bypass Road, and 636 Road. You'll also find sections of the Telluride Via Ferrata and Bridal Veil Wagon Road along the way.
Given the extreme difficulty and high altitude, don't be afraid to hike significant portions, especially on the steepest ascents and above 12,000 feet. Even seasoned athletes in the Imogene Pass Run often walk these sections. Conserving energy and maintaining a steady pace will make the experience more enjoyable and safer. Also, start early to avoid afternoon thunderstorms and allow ample time.
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