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Twin Sisters Trail



3.6 mile 5.8 kilometer point to point
69% Runnable


Ascent: 2,395' 730 m
Descent: -4' -1 m
High: 11,337' 3,456 m
Low: 8,945' 2,727 m


Avg Grade: 13% (7°)
Max Grade: 30% (17°)


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

Brian Smith

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

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. 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. Overflow parking across from Lily Lake adds mileage to the hike.


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.

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Aug 6, 2017
Becky Campbell
Jul 8, 2017
Kaylee M

Trail Ratings

  4.3 from 34 votes


in Estes Park


  4.3 from 34 votes
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in Estes Park


in Colorado


79 Views Last Month
7,016 Since Jan 15, 2015



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
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
The summit of Twin Sisters Peak offers phenomenal views of Longs Peak and Mount Meeker.
Mar 7, 2017 near Estes Park, CO
From the top of Twin Sisters looking southwest towards Longs Peak.
Sep 22, 2019 near Estes Park, CO


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