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A long approach into the northern reaches of RMNP.

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Point to Point

11,007' 3,355 m


7,676' 2,340 m


3,338' 1,017 m


125' 38 m



Avg Grade (4°)


Max Grade (12°)

Dogs No Dogs

Features Birding · Cave · Fall Colors · Lake · River/Creek · Views · Waterfall · Wildflowers · Wildlife

Dogs are not allowed in Rocky Mountain National Park. The trail crosses into the park around mile 4.


This trail crosses through the Comanche Peak Wilderness and into Rocky Mountain National Park. Access the North Fork Trail from the Dunraven Trailhead graveled parking lot, there you'll find room room for 23 vehicles and a vault toilet.

From the parking area the trail drops into a canyon and follows the North Fork of the Big Thompson for several miles. Bridges have been placed at some of the stream crossings. The trail briefly passes through the private Cheley Camp, please do not trespass. Before the trail departs from the river it passes through large open meadows with historic cabins (which were nearly destroyed in 2013 flood) commonly known as Deserted Village and then ascends to the border of Rocky Mountain National Park. After the flood the trail was relocated to north of the river and no longer passes by the remains of the cabin.

Upon entering the park, the trail continues paralleling the North Fork of the Big Thompson as it gains elevation. Around five miles into the trail, the North Boundary Trail will branch off to the south (left). Enjoy the views of the North Fork of the Big Thompson and its associated wetlands as you travel another mile and a quarter to a junction with the Stormy Peaks Trail, which splits off to the north (right).

A final stretch of two and a quarter miles of trail will lead you to the beautiful Lost Lake. The lake's name will come as no surprise given the journey that you have undertaken to reach this point.


Shared By:

Brian Smith with improvements by Jim Medlock and 1 other

Trail Ratings

  4.3 from 19 votes


  4.3 from 19 votes
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Trail Rankings


in Colorado


30 Views Last Month
8,271 Since Jan 14, 2015
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Trail near Sugarloaf camp
Aug 20, 2021 near Estes Park, CO
Trail near Sugarloaf camp.
Aug 20, 2021 near Estes Park, CO
Lost Meadow 09/27/2018
Sep 28, 2018 near Estes Park, CO
Lost Lake on 9/27/18
Sep 28, 2018 near Estes Park, CO
The biggest intersection on the North Fork Trail.
Aug 20, 2021 near Estes Park, CO
Lost Meadow -- August 20, 2019. Enjoyed the cooler breeze as we entered this meadow!
Aug 24, 2019 near Estes Park, CO


Current Trail Conditions

Add Your Check-In


Jun 18, 2023
Quentin Cui
Nov 6, 2022
Jon D
Decent trail, well marked, fairly maintained. Some snow & mud, winter is coming, micro spikes recommended. — 4h 00m
Jul 21, 2021
Scott Donovan
Jun 12, 2021
Donald Blake
Goes through the Cameron Peak Fire burn area. 4.5mi — 3h 15m
May 21, 2020
Adventure CGN
The trail is in great shape. Didn't see any snow until just before RMNP boundary and it was just little patches.
Aug 20, 2019
Melanie S
Nice hike from Boundary Creek up to Lost Lake. Hot. We appreciated the cooler breeze once we hit Lost Meadow at 10,400 ft. 5.4mi — 2h 30m
Jul 12, 2019
Twoax Porter
9.5mi — 9h 15m
Feb 2, 2019
Sam F
Snowy, icy, and muddy. 4 miles with plenty of people on trail. 4mi

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