MTB Project

Rollins Pass (aka Corona Pass)

Consensus:    (details)
 3.2 from 5 votes
  Easy from 3 votes
Rank: #31 in the Boulder area
#628 in CO, #4,168 Overall
Views: 4,107. Last 30 days: 97
Trail near Nederland,  area, 
“The old railroad grade over Rollins pass from Rollinsville to Winter Park.”
Alan Doak on Jun 26, 2013
Getting There     GPX File     Print
35.757.5 milesKilometers 3,233’985 m Ascent 11,671’3,557 m High 3% Avg Grade (2°)
Doubletrack Type -2,674’-815 m Descent 8,457’2,578 m Low 26% Max Grade (14°)
Needle Eye Tunnel is closed and barricaded, but a detour path over the tunnel is available.
11:00 average ride time for 84.0 miles. Details

Head up the smooth dirt East Portal road from Rollinsville. This part of the road is suitable for all cars and crowded, so many people drive this section and park at the Moffat Tunnel. Check out the Moffat tunnel, which made the original narrow gauge railroad obsolete, before heading up the switchbacks leading up to the continental divide. There is also a bore parallel to the Moffat Tunnel which pipes water from the west side of the divide to the east side, confusing the traditional definition of a continental divide as the division between 2 drainage basins.

As you near treeline, you'll encounter the lovely Yankee Doodle Lake and Jenny Lake. On the east side of Yankee Doodle lake is the Boulder Wagon Trail, which is how 4WD vehicles avoid the Needle Eye tunnel (which is closed and barricaded). But on a bike, there is a clear detour trail over the tunnel.

At the summit, there are a few ways to go, but they all merge back together again before heading down the west side of the continental divide. If you stick to the railroad grade, near the summit is the trestle bridge, which is quite a thrilling crossing. You'll also notice a large number of timbers next to the grade near the summit, which are the remnants of a near continuous snow shed.

Enjoy the pleasant downhill on the West side of the continental divide, while stopping occasionally to enjoy the view and to inspect relics of the railroad. Pop out onto Highway 40, and either cross the highway or ride the shoulder west a bit to access the Fraser River Trail which leads to either the town of Winter Park (West) or the ski resort (East) for food and drink.
View in 3D
5.0 (2)
A challenging mountain link-up with a substantial downhill finish.
near Nederland, CO
4.3 (4)
The course of the eponymous underground, unsanctioned, unofficial, mountain b...
near Nederland, CO
4.0 (73)
One of the better beginner/intermediate rides in the front range.
near Idaho Springs, CO

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PHOTOS of Rollins Pass (aka Corona Pass)
 5.0 from 2 votes
Nearing the tunnel (Fraser, CO)
 4.0 from 2 votes
Back to the rail grade as the usual thunderstorm builds. (Fraser, CO)
 4.0 from 2 votes
Hiking over the barricaded tunnel. (Fraser, CO)
 4.0 from 2 votes
Final stretch to the divide. (Fraser, CO)
 4.0 from 2 votes
The Continental Divide (Fraser, CO)
 3.3 from 3 votes
The final switchback before the divide, right at treeline (Fraser, CO)
 3.0 from 2 votes
Yankee Doodle Lake below, and the Needle Eye Tunnel on the flank of that... (Fraser, CO)
 3.0 from 2 votes
An old school (or church?) in Tolland, with your destination FAR above! (Nederland, CO)
 3.0 from 2 votes
Yankee Doodle Lake, with the next switchback just above that snowfield. (Fraser, CO)
 2.0 from 3 votes
Broken Thumb trail is open to motorcycles, horses, bicycles, and pedestr... (Winter Park, CO)
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