4.8
(3)
44
hikers
14
hikes
Hiking in Rio Blanco County explores the rugged terrain of northwestern Colorado. The region features high desert plains, rolling hills, plateaus, and mountain ranges, with the White River carving through the landscape. Its topography includes volcanic cliffs, alpine lakes, and extensive national forest lands, notably the Flat Tops Wilderness Area and portions of the White River National Forest.
Last updated: May 12, 2026
5.0
(1)
6
hikers
8.84km
02:33
360m
0m
The Marvine Trail offers a dynamic hiking experience, beginning with steady climbs through lush forests and open meadows. You will traverse narrow valleys and wide, grassy areas, flanked by aspen,…
31.1km
09:32
1,210m
810m
Embark on a challenging backcountry adventure with the Devil's Causeway, Lost Lakes, and Chinese Wall Loop. This difficult hike spans 19.3 miles (31.1 km) and involves a significant elevation gain…

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4.74km
01:41
430m
20m
Embark on the Devil's Causeway, a challenging yet rewarding hike spanning 2.9 miles (4.7 km) with a significant elevation gain of 1423 feet (434 metres). This moderate route typically takes…
4.5
(2)
25
hikers
16.5km
04:56
490m
490m
Embark on the Devils Causeway Loop, a moderate hiking adventure spanning 10.3 miles (16.5 km) with an elevation gain of 1616 feet (493 metres). This route takes you through diverse…
2
hikers
17.0km
05:27
730m
730m
Embark on the Devils Causeway and Causeway Lake hike, a challenging route that spans 10.6 miles (17.0 km) with a significant elevation gain of 2394 feet (730 metres). You can…
2
hikers
11.9km
03:30
340m
340m
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…
3
hikers
7.81km
02:21
260m
260m
Embark on the Skinny Fish Lake Trail for a moderate hiking experience that spans 4.9 miles (7.8 km). You will gain 854 feet (260 metres) in elevation, with the route…
2
hikers
4.92km
01:26
140m
140m
Embark on an easy hike along the Sand Creek Trail, a pleasant route that winds through forested areas in Routt National Forest. You will cover 3.1 miles (4.9 km) with…
15.7km
04:35
420m
420m
Embark on the Douglas Pass Trail, a moderate hiking route that takes you through diverse terrain, from pinyon-juniper woodlands to open sagebrush expanses. This journey covers 9.7 miles (15.7 km)…
21.1km
06:24
730m
730m
Embark on the Ute-Heart Lake Trail for a difficult hiking experience that spans 13.1 miles (21.1 km) and climbs 2400 feet (731 metres) in elevation. You can expect to spend…
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Popular around Rio Blanco County
The trail to this lake winds through a mix of forest and meadow, and is open to all-terrain vehicles as well. You might see the ruins of an old Forest Service lodge on the northeast shore of the lake.
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Douglas Pass is a mountain pass in Colorado, known for its stunning scenery and steep, winding roads. When navigating Douglas Pass, be prepared for dramatic elevation changes and breathtaking vistas of the surrounding mountains and canyons.
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Causeway Lake is a stunning alpine lake with towering rock walls and beautiful pine forest around the lake shore. Take your time and spend the night in the backcountry to enjoy this pristine nature to the fullest.
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The trailhead is usually open June to November, depending on snowfall, and grants access to a number of epic trails including Devils Causeway. Overnight parking is allowed, and there are campsites that are first-come first-served.
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Besides McGinnis Lake just south of here, Skinny Fish Lake is one of two gorgeous lakes at the base of the Flat Tops on the west side of the Chinese Wall. It is a nice run, but also a perfect destination for trout fishing. If you want to spend the night, the best camp spots are on the west side of the lake.
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This loop trail at the edge of the stunning Flat Tops Wilderness takes you through lush pine forest and offers great views over the Stillwater Reservoir while you climb all the way to the top of Devils Causeway, an impressive rock wall.
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The prime hiking season in Rio Blanco County is from late spring to early fall, typically June through September. During these months, the weather is warmer, snow has melted from higher elevation trails, and the meadows in areas like the Flat Tops Wilderness are full of wildflowers. Fall offers beautiful colors, especially in the aspen groves, but be prepared for colder temperatures and the possibility of early snow.
Yes, there are options for less experienced hikers. For a relatively short and rewarding hike, consider the Sand Lake via Sand Creek Trail — Routt National Forest. It's a manageable 3.1-mile (4.9 km) route that leads to a scenic lake, making it a great choice for an easier day out.
Dogs are generally permitted on trails in the White River National Forest and the Flat Tops Wilderness, but they must be under voice control or on a leash. It's important to be mindful of wildlife and other hikers. Always check specific regulations for the area you plan to visit, as rules can vary, especially in designated wilderness areas.
The Flat Tops Wilderness is a remote and rugged area. Be prepared for rapidly changing weather, even in summer. You should carry extra layers, plenty of water, and a reliable map and compass or GPS device, as cell service is unreliable. The terrain can be challenging, with significant elevation. Let someone know your itinerary before you go.
The region offers several excellent loop trails. For a moderately challenging loop around a historic lake, the 5.5-mile (8.9 km) Carhart Trail – Flat Tops Wilderness is a great option that circles Trappers Lake with minimal elevation gain.
The trails in Rio Blanco County are highly rated by the komoot community. Hikers often praise the region for its solitude, stunning alpine scenery, and the wild, untamed character of the landscape, particularly within the Flat Tops Wilderness.
Yes, the area is well-suited for backpacking. For a demanding multi-day trip, you could tackle the Devils Causeway via Flat Tops Meadows route. At nearly 18 miles (29 km) with significant elevation, it's a serious undertaking that rewards with expansive views and a true wilderness experience.
Many trails in the county lead to beautiful alpine lakes. A moderate option is the route to Skinny Fish Lake – Flat Tops Wilderness, a 4.9-mile (7.8 km) hike that takes you through meadows to a secluded lake nestled beneath dramatic cliffs.
Meeker serves as an excellent base for day hikes into the White River National Forest and the Flat Tops. A great full-day option is the hike to Slide Mandall Lake and Black Mandall Lake. This 7.4-mile (11.9 km) trail offers access to multiple scenic lakes and is a fantastic way to spend a day exploring the high country.
To experience the rugged landscape of the Bookcliffs, you can hike the Douglas Pass Trail — Colorado. This nearly 10-mile (16 km) trail traverses sagebrush and aspen groves, offering a different kind of scenery from the Flat Tops and a chance to spot wild horses.
While the Flat Tops Wilderness is part of the larger White River National Forest, it has special protections. Hikes in the Wilderness area are often more remote and primitive, with no motorized vehicles or bicycles allowed. Trails in the broader National Forest may be more accessible and allow for a wider range of uses, but both offer incredible scenery and access to Colorado's backcountry.
While the area is more known for its alpine lakes and vast meadows, many of the streams and rivers that flow from the high country feature cascades and small waterfalls, especially during the spring snowmelt. The trail to Little Trappers Lake – Flat Tops Wilderness follows a creek and offers the chance to see water features along the way.


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