4.9
(9947)
17,681
runners
07:10
33.7km
900m
Running
Jog Colorado Trail: Segment 9, a difficult 21.0-mile route through San Isabel National Forest with 2959 feet of elevation gain and stunning
Last updated: February 26, 2026
Tips
Includes segments that may be dangerous
Parts of this route comprise highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.
After 1.53 km for 14.4 km
After 18.0 km for 14.4 km
Waypoints
Start point
Parking
Get Directions
43 m
Highlight • Mountain Pass
Tip by
16.9 km
Highlight • Mountain Hut
Tip by
33.7 km
End point
Parking
Way Types & Surfaces
Way Types
16.0 km
12.8 km
3.30 km
972 m
578 m
133 m
Surfaces
28.8 km
2.41 km
1.27 km
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Elevation
Highest point (3,560 m)
Lowest point (3,150 m)
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Weather
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Saturday 11 July
21°C
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This route was planned by komoot.
The Colorado Trail: Segment 9 typically starts near Tennessee Pass. This trailhead is generally vehicle-accessible, making it convenient for day users. Parking is usually available at the start of the segment.
This segment is rated as difficult for jogging. It begins with mostly gentle, level paths through forested areas from Tennessee Pass but quickly transitions to more challenging sections. You'll encounter significant elevation changes, including steep climbs, particularly after mile 7, and a notable ascent to the Porcupine Lakes area. The path can be rocky in places, and sections within the Holy Cross Wilderness are rugged, though climbs are often relatively short. Be prepared for both uphill and downhill sections, including a steep descent towards Timberline Lake Trailhead.
The trail offers diverse scenery, winding through beautiful pine groves and lush forests. You'll pass numerous streams and backcountry lakes, including the Porcupine Lakes and views of Bear Lake. As you ascend, particularly to the high points, you'll be treated to fantastic views east towards the Mosquito Range and the Arkansas River Valley. Don't miss the Tennessee Pass – Continental Divide & 10th Mountain Division Memorial at the start, and the route also passes near Uncle Bud's Hut.
Yes, the Colorado Trail, including Segment 9, is generally dog-friendly. However, it's crucial to keep your dog on a leash, especially as parts of the trail traverse the Holy Cross Wilderness, where wildlife is abundant and regulations may be stricter. Always practice Leave No Trace principles, including packing out all pet waste.
The best season for jogging Segment 9 is typically from late June to early November. Outside of this window, you can expect snow, which can make the trail impassable or significantly more challenging. Be aware that mosquitoes can be prevalent in certain areas during the summer months.
Generally, no specific permits are required for day use or jogging on the Colorado Trail: Segment 9. There are typically no entrance fees for accessing trails within the San Isabel National Forest. However, if you plan to camp overnight, especially in the Holy Cross Wilderness, always check current regulations for any required wilderness permits or fire restrictions.
Yes, this segment is known for having fairly common and year-round water sources. However, it's always recommended to carry enough water for your planned activity and to filter or treat any water collected from natural sources to ensure it's safe for consumption.
Given its distance of approximately 33.7 kilometers (21 miles) and difficult rating, jogging this segment can take around 7 hours and 10 minutes for an average jogger. This duration can vary significantly based on your fitness level, the weather, and how often you stop to enjoy the views.
No, Colorado Trail: Segment 9 is generally not recommended for beginner joggers. It is rated as difficult due to significant elevation changes, steep climbs, and rocky terrain. Beginners might find the sustained effort and high altitude challenging. It's best suited for experienced joggers looking for a demanding route.
Yes, there are good camping spots throughout much of the segment. However, be aware that there are some exceptions in the middle section, specifically between mile 6.9 and 10.9, where suitable camping spots may be limited. Always practice Leave No Trace principles and check for any fire restrictions, especially within the Holy Cross Wilderness.
Yes, the route of Colorado Trail: Segment 9 overlaps with several other notable trails. You'll find it shares sections with the ADT - Colorado C - Q - Seg 4, the CDT - Colorado Section, and the Continental Divide Trail and Colorado Trail (Segment 9). It also briefly intersects with the Treeline Loop Ski Trail and Saint Kevin's Lake Trail.
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