East Fork to Lost Lake


Originally, this area was developed by miners in the 1800s with the beginning sections were built as part of the Big Ditch used to divert water from the mountains to the working mines in Elizabeth town.

Today, riders from thousands of places flood to the area for fantastic mountain bike trails. Ease Fork to Lost Lake is one of the must-ride loops in the area. It’s a classic uphill/downhill alpine ride that shows off some of the most magnificent views of the Sangre de Cristo Mountains and the valleys around Red River. The higher sections of the trail cross steep avalanche terrain and there is exposure, rocks and cliffs, and open rock fields that can attract lightning during the monsoon season. Between mid-late October and mid-June, the upper elevations of this trail are often snow packed. Lots of avalanche terrain to be aware of when snow is present.

With the passage of the Columbine-Hondo Wilderness bill on December 19, 2014, the Wheeler Peak Wilderness boundary was redrawn so the section of this ride that was within the boundary is now legally rideable.


This trail is fun and enjoyable thanks to its diverse terrain and many riding features. The climb will be steep and a little technical. But later you’ll find it become smooth and flowy with some rocks and roots. Keep your eyes open since there are a few tricky stumps and downed trees to navigate around. Also, the ride includes stream crossings passing some amazing views.

The descent on the Lost Lake trail is pretty sweet, the first 2 miles of trail cross steep avalanche chutes and rock fields then lots of smooth and fast singletrack and enough technical rock hopping and root jumping to keep any experienced rider happy. Then, get ready for a series of switchbacks and a final creek crossing the junction with the Middle Fork Trail/Forest Road 487.


From the intersection with SR 38 in Red River, drive 6 miles up 578 to the junction with the Middle Fork Road. This is the best place to park; you can also park at either the Middle Fork Trail/Forest Road 487 trailhead or the East Fork Trail #56 trailhead, then ride back up to your vehicle.

Once you’ve parked, ride across the bridge and turn right onto Forest Road 58A. Continue through the residential area to the East Fork Trailhead (well-marked and singed) where the singletrack begins.

Food and drink

If you’re planning a picnic, Lost Lake has some really nice campsites among the boulders and old growth trees. They’re perfect spots to have a lunch break before continuing the rest of the ride. Or you can easily find a place for good food and drinks such as the Smokehouse at the bottom of the Pioneer Creek Road in Red River. They have delicious Texas BBQ.

Further info

These trails are often heavily used by hikers and horses, and ATV traffic can be high on the roads so be alert.


The information on this page is sourced from:


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20.475 km / 12.722 mi

Total Distance

761 m / 2,496 ft

Total Ascent

760 m / 2,494 ft

Total Descent

3,521 m / 11,552 ft

Highest Point

Ride type:
Mountain biking
Road riding
Rail Trail
Difficulty: Advanced (Black)
Ride Duration: 2-4 hrs
Fitness Level: High
Shared Bike Path - Paved
Shared Bike Path - Dirt
On-Road Bike Lane
Off-Road - Fire Trail
Off-Road - Rail Trail
Off-Road - Single Track
Off-Road - Downhill
Gravel Road
Trail Signage: Good
Mobile Coverage: Limited
First Aid
Bike hire
Bike servicing
Accessible by bike
Accessible by car
Accessible by public transport
Accessible by shuttle
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