Hiking Project Logo

High Lonesome Loop

Difficult
 4.9 (80) RECOMMENDED ROUTE

A backcountry trail providing the best of high alpine hiking, with stunning views along the Divide.


Your Rating:      Clear Rating
Your Difficulty:
Your Favorites: Add to Favorites · Your List
Zoom in to see details
Map Key

15.7

Miles

25.2

KM

Loop

12,035' 3,668 m

High

8,988' 2,740 m

Low

3,162' 964 m

Up

3,162' 964 m

Down

8%

Avg Grade (4°)

41%

Max Grade (22°)

Dogs Leashed

Features Lake · River/Creek · Views · Waterfall · Wildflowers · Wildlife

Organized day-use groups are required to have a permit. Day-use permits are free. Overnight campers are required to have a permit. Campfires are prohibited.

Overview

This trail traverses between the Front Range of Colorado and the ski resort of Winter Park. If you catch good weather, you can see both sides of the Continental Divide and stunning views that go for miles.

The Hessie trailhead can be a parking nightmare. On a weekend, plan on taking a free shuttle. If you can manage a weekday hike, you'll miss huge crowds. The trail is congested near the trailhead, but if you do the loop you'll often leave much of the crowd behind by the time you reach the Divide.

Need to Know

Start your hike early. The top is exposed and lightning can be a major concern. If you're out in the early season, such as June or early July, be prepared for a massive snow cornice above Devil's Thumb. You may have to route-find a bit to get around the cornice to the trail and traverse above.

Description

At the Hessie Trailhead, follow the main dirt road. It is well signed and points you in the right direction. Continue as the dirt road becomes quite steep and rocky.

At mile 1.4, you'll hit a trail marker for the Devils Thumb Bypass. Take this right turn onto singletrack and continue to climb at an easier and steady grade. You'll pass through open meadows and lush scenery.

At mile 2.7, you'll continue straight on Devils Thumb Trail and start to climb a little more in earnest. The terrain will be rocky at first, but begin to even out as you reach the grassy areas of alpine lakes. Take in the scenery as you ascend and you'll be rewarded with waterfalls and wildflowers.

Take a breather as the trail levels out by Jasper Lake and then Devil's Lake. As soon as you pass the end of Devil's Lake, the climbing begins in earnest. Through thick brush and very skinny singletrack, you'll quickly gain elevation to the top of the Divide. This may require some hands-on-knees hiking as you crest over the final pitches.

Recover at the top by taking in the magnificent views. Hopefully, you have good weather and a storm isn't chasing you down. The trail will continue to traverse along the Divide for roughly 3 miles.

Rounding a corner on the far side of the traverse, you'll drop into King Lake. You might even see some skiers coming down the glacier into the basin from this altitude. Start the fast descent as it quickly brings you off the divide into the meadows of King Lake.

Just after mile 10, stay right and continue on King Lake Trail. In less than half a mile, you'll once again stay right to remain on King Lake Trail. At 14.5 miles, Devil's Thumb Trail will meet up with you, and continue straight on what is now Devil's Thumb Trail. Continue to maintain your straight course all the way down to the trailhead. You'll see the Devil's Thumb Bypass Trail on your left and know that you've completed your lollipop. Take your tired legs back across the rocky and steep dirt road that you began on, and you'll find yourself back at the Hessie Trailhead and your car.

Flora & Fauna

Wildflowers cover the ground in July and August, with wildlife throughout the meadows. Catch a glimpse of the elusive ptarmigan or moose, and see plenty of marmots and chipmunks.

Contacts

Shared By:

Tiffanie Beal

Trail Ratings

  4.9 from 80 votes

#7

Overall
  4.9 from 80 votes
5 Star
88%
4 Star
11%
3 Star
1%
2 Star
0%
1 Star
0%
Recommended Route Rankings

#5

in Colorado

#7

Overall
679 Views Last Month
49,956 Since Aug 3, 2015
Difficult

0%
0%
13%
9%
78%
0%

Photos

Leaving the Jasper Creek drainage for the Continental Divide on a sunny morning.
Aug 1, 2017 near Fraser, CO
Looking toward Devil's Thumb Peak, yeah!
Aug 25, 2015 near Fraser, CO
View from the top
Aug 23, 2019 near Fraser, CO
King Lake.
Aug 25, 2015 near Fraser, CO
Almost to the divide on the Devil
May 3, 2015 near Fraser, CO
Descending to Kings Lake surrounded by Yellow Paintbrush.
Aug 1, 2017 near Fraser, CO

Weather


Current Trail Conditions

Update Conditions
All Clear 20 days ago See History
Add Your Check-In

Check-Ins

Oct 4, 2020
Kristen Granger
Unreal!! Perfect weather, amazing trail, lots of fall colors too! Great run 15.5mi — 4h 00m
Aug 9, 2020
Andreas Prein
Aug 9, 2020
Matt Alvord
Jul 19, 2020
Theresa Saenz
Camp at Devil's Thumb
May 30, 2020
Mike Minson
3734' elevation gain. Over 50% of route covered in snow still. Extremely beautiful and vital down low, still beautiful but cold and desolate up high. 16.5mi — 6h 01m
Sep 15, 2019
Tina F
Hiked past Jasper Lake to camp at Devils Thumb Lake (had it all to ourselves!) then got up and finished the loop in 5.5 hours. Gorgeous!
Sep 9, 2019
Christian Thielemier
First backpacking trip and was completed over the course of three days / two nights. 15.7mi — 16h 00m
Aug 30, 2019
Ricky Dennis
Three day (1/2 day, full day, 1/2 day) family backpacking trip counterclockwise around the loop with a 4 year old and 8 year old. Camped at Jasper… 15.7mi — 51h 00m