1
hikers
07:51
26.7km
740m
Hiking
Hike the challenging 16.6-mile Haynach Lakes Trail in Rocky Mountain National Park, featuring alpine lakes, waterfalls, and abundant wildlif
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
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3.90 km
Highlight (Segment) • Trail
Tip by
8.33 km
Highlight • Waterfall
Tip by
13.4 km
Highlight • Lake
Tip by
26.7 km
End point
Parking
Way Types & Surfaces
Way Types
26.7 km
< 100 m
Surfaces
26.7 km
< 100 m
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Elevation
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Weather
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Today
Wednesday 27 May
9°C
1°C
74 %
Additional weather tips
Max wind speed: 10.0 km/h
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This route was planned by komoot.
The most common access point for this trail is the Green Mountain Trailhead. Parking is available there, but as with many popular areas in Rocky Mountain National Park, it's advisable to arrive early, especially during peak season, to secure a spot.
Yes, the Haynach Lakes Trail is located within Rocky Mountain National Park, so you will need to pay the park's entrance fee. Additionally, during certain peak seasons, a timed entry permit may be required to access the park. For overnight trips, a backcountry permit is also necessary.
No, dogs are generally not permitted on trails within Rocky Mountain National Park, including the Haynach Lakes Trail. This policy helps protect wildlife and natural resources. Service animals are an exception.
The best time to hike this trail is typically from late June through early October. Even in summer, snow and ice can linger, and afternoon thunderstorms are common. Fall offers beautiful foliage, especially in the meadows, but be prepared for rapidly changing weather and potentially wintery conditions.
This is considered a difficult trail, ideal for experienced hikers and backpackers. It features significant elevation gain, including a steep initial section. Some parts of the trail can be faint, requiring careful navigation, and you may encounter snow, ice, or wet sections even in summer.
The route offers diverse and stunning scenery. You'll traverse forested valleys, lush subalpine meadows like Big Meadows and Tonahutu Meadows, and eventually ascend above treeline. Highlights include the beautiful Granite Falls, sweeping mountain views, and the pristine Haynach Lakes themselves, nestled below Nakai Peak.
The lush meadows along the Tonahutu Creek Trail are frequently visited by elk and moose, offering excellent viewing opportunities. Near the lakes, you might hear pikas chirping among the boulder fields. Always observe wildlife from a safe distance.
Yes, backcountry camping is an option along this trail. There are several designated backcountry campsites, including one directly at Haynach Lakes. A backcountry permit from Rocky Mountain National Park is required for all overnight stays.
Given its length of approximately 26.7 km (16.6 miles) and significant elevation gain, this hike typically takes around 8-10 hours to complete as a day trip. Many hikers choose to make it an overnight backpacking trip to fully enjoy the remote wilderness.
Yes, the route follows sections of several other trails. You'll be on parts of the Continental Divide National Scenic Trail - Rocky Mtn Park, the CDT - Colorado Section, the Tonahutu Creek Trail, and the Green Mountain Trail.
Conditions can change rapidly in Rocky Mountain National Park. Be prepared for anything from warm sunshine to severe thunderstorms or even wintery weather, even in summer. Snow and ice can persist on the trail well into July. Always check the latest park conditions and forecast before heading out.