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A fantastic and steep trail leading to the top of Twin Sisters Mountains.


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Map Key

7.5

Miles

12.1

KM

71%

Runnable

11,340' 3,456 m

High

8,951' 2,728 m

Low

2,392' 729 m

Up

2,388' 728 m

Down

12%

Avg Grade (7°)

31%

Max Grade (17°)

Dogs No Dogs

Features Birding · Fall Colors · Geological Significance · Views · Wildflowers · Wildlife

Overview

A challenging but rewarding out-and-back run with beautiful views of foothills and surrounding peaks south of Estes Park.

Need to Know

All animals are prohibited on this trail. Due to erosion from the severe flooding rains in Summer of 2013, this is a natural restoration area. Stay on the marked trail at all times. The trail is extremely rocky for most of the distance, except in the months when the trail is snow-covered. I saw a few trail runners making great time in both directions, so the rocks must not have been an obstacle for them.

Arrive early in the morning for the best views, and parking. There are limited roadside (right side ONLY) spaces available near the trailhead. However, there are times when the roadside parking near the trailhead is closed, so only the parking lot is available. Overflow parking across from Lily Lake adds mileage to the hike.

Description

From the Twin Sisters / Lily Lake Trailhead, start running up the Twin Sisters Trail. This is a very popular trail/trailhead, especially in the summertime, so be ready for some crowds.

The trail begins its first series of switchbacks about a quarter of a mile from the trailhead. At this point the trail is mostly contained in a dense forest so the views of Longs Peak are fleeting.

After the first series of switchbacks, the trail levels out to a much more manageable grade and contours to the south along the mountain's western shoulder. There is a large wash just before the next series of switchbacks that offers unobstructed views of Longs and all points westward.

Gather your strength and run through the seemingly never-ending switchback towards the summit. Eventually, you'll break out above tree line and the views will increase exponentially. Continue up the ridge to the Twin Sisters Peak Summit Spur and scramble to one of the two summits.

Contacts

Shared By:

Brian Smith with improvements by Mark Woods and 1 other

Trail Ratings

  4.3 from 64 votes

#1

in Estes Park

#169

Overall
  4.3 from 64 votes
5 Star
45%
4 Star
44%
3 Star
9%
2 Star
2%
1 Star
0%
Recommended Route Rankings

#1

in Estes Park

#46

in Colorado

#169

Overall
45 Views Last Month
14,146 Since Jan 15, 2015
Intermediate/Difficult Intermediate/Difficult

2%
0%
23%
32%
44%
0%

Photos

Lily Lake Trail, Rocky Mountain National Park. Estes Park, Colorado.
Aug 10, 2019 near Estes Park, CO
The summit of Twin Sisters Peak offers phenomenal views of Longs Peak and Mount Meeker.
Mar 7, 2017 near Estes Park, CO
Natural restoration in progress, 6 years after the landslide. Take care along this part of the trail, please do not step on even the smallest blade of grass.
Sep 22, 2019 near Estes Park, CO
There are several breaks in the tree line up Twin Sisters Trail with astounding views of Longs Peak. This is 9700', looking 270 degrees SW.
Sep 22, 2019 near Estes Park, CO
14,120' elevation from the top of the western Twin Sisters Peak, looking east towards the other Twin. Wonder what they're taking pics of? Idea of scale from here, looking down the saddle up.
Sep 25, 2019 near Estes Park, CO
Twin Sisters Peaks west summit looking down the saddle, across to the east peak.
Oct 12, 2019 near Estes Park, CO

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Current Trail Conditions

All Clear 77 days ago
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Check-Ins

Oct 11, 2024
Aaron P
That was hard. Would do again. 7.2mi — 2h 10m
Jul 9, 2022
Trevor Edie
Great run with some scrambling up top. Amazing views! 7.4mi
Aug 22, 2021
natalie horton
Dec 1, 2018
Trent Hillier
Aug 6, 2017
Becky Campbell
3.2mi
Jul 8, 2017
Kaylee M
8.1mi
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