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11.9km
340m
Hiking
Embark on the Mandall Lakes Trail, a moderate hike that takes you through the expansive Flat Tops Wilderness. You will cover 7.4 miles (11.9 km) and gain 1114 feet (340 metres) in elevation, typically taking about 3 hours and 30 minutes to complete. The route winds through lush aspen and…
Last updated: April 23, 2026
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5.97 km
Highlight • Lake
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7.29 km
Highlight • Lake
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11.9 km
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Way Types & Surfaces
Way Types
11.9 km
Surfaces
11.9 km
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This route was planned by komoot.
The Mandall Lakes Trail is a moderate hike that typically takes around 3 hours and 30 minutes to complete. This estimate is for the full 11.9 km route.
The trail offers diverse terrain, starting with ascents through lush aspen slopes before entering the Flat Tops Wilderness. You'll encounter shaded fir and aspen forests, vibrant green meadows, and several creek crossings. Higher elevations reveal dramatic volcanic peaks and flat-topped cliffs, often adorned with wildflowers.
The route is renowned for its pristine alpine lakes. You'll pass by Black Mandall Lake and Slide Mandall Lake, both offering picturesque views. The trail also leads to Mandall Pass, which provides panoramic views of the surrounding Flat Top Mountain and the Mandall Lakes Basin.
The best time to hike is generally during late spring, summer, and early fall. Be aware that spring can bring challenging creek crossings due to high runoff. Summer offers vibrant wildflowers, while fall provides stunning foliage. Always check local conditions before you go.
Yes, dogs are generally permitted on the Mandall Lakes Trail. As it's located within the Flat Tops Wilderness of the Routt National Forest, it's important to keep your dog on a leash to protect wildlife and ensure a pleasant experience for all hikers.
The Mandall Lakes Trail is located within the Routt National Forest and the Flat Tops Wilderness. Generally, there are no specific permits required for day hiking in these areas, nor are there entrance fees. However, it's always a good idea to check the latest regulations on the USDA Forest Service website for any updates or specific wilderness area rules.
Specific parking information for the Mandall Lakes Trailhead is typically available through the Routt National Forest service. Look for designated parking areas near the trail's starting point, which are usually well-marked. Arriving early, especially on weekends, is recommended to secure a spot.
The Flat Tops Wilderness is home to diverse wildlife. Hikers may spot deer, elk, and various bird species like grouse. Keep an eye out, especially in the meadows and forested areas, and always maintain a respectful distance.
While the primary route is often hiked as an out-and-back, some sources suggest looped options exceeding 13 kilometers. Beyond Mandall Pass, experienced hikers can navigate cross-country to destinations like Orno Peak and the iconic Devil's Causeway, though these are not part of the marked trail.
Yes, the route primarily follows the Mandall Lakes Trail for about 94% of its length. It also briefly intersects with sections of the Black Mandall Trail for approximately 9% of the route.
The Mandall Lakes Trail is rated as moderate. It involves a significant elevation gain of 340 meters and covers a distance of nearly 12 kilometers, making it a good challenge for hikers with some experience.