Forest Guide
Colorado is home to 6 major national forests that cover millions of acres across the state. These vast woodlands span diverse landscapes, from the high alpine peaks and river valleys of the Rocky Mountains to the high-desert mesas of the western slope. The forests in Colorado provide a wide range of terrain for outdoor recreation, including dense stands of ponderosa pine, Douglas fir, and aspen groves. The primary activities available are hiking, mountain biking, gravel biking, and road cycling on…
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Last updated: April 23, 2026

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White River National Forest is Colorado's largest national forest, offering 2.3 million acres of alpine landscapes, mountains, and extensive trails for hiking and cycling.
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Arapaho And Roosevelt National Forests offers 1.5 million acres of diverse terrain, from dense forests to alpine peaks, with extensive routes for hiking and mountain biking.
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Pike And San Isabel National Forests spans over three million acres in central Colorado, offering diverse terrain for hiking, mountain biking, and cycling.
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Grand Mesa, Uncompahgre And Gunnison National Forests offers diverse landscapes, from plateaus to 14,000-foot peaks, with over 300 alpine lakes for hiking, mountain biking, and cycling.
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San Juan National Forest offers 1.8 million acres of diverse landscapes, from high-desert mesas to alpine peaks, ideal for hiking, mountain biking, and cycling.
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Rio Grande National Forest offers over 1.8 million acres of diverse terrain in south-central Colorado, providing varied environments for hiking, jogging, mountain biking, and touring cycling.
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Colorado is home to 11 national forests. This page aggregates routes from six major ones, including White River National Forest, the most visited in the U.S., and Arapaho And Roosevelt National Forests near the Front Range. Other significant forests covered include Pike And San Isabel National Forests, San Juan National Forest, Grand Mesa, Uncompahgre And Gunnison National Forests, and Rio Grande National Forest.
The primary activities in Colorado's forests are human-powered sports. This includes an extensive network of trails for hiking, mountain biking, and running. Paved and gravel roads within the forests also provide routes for road cycling and gravel biking.
As the most visited national forest in the United States, White River National Forest offers extensive hiking opportunities. There are more than 50 designated hiking routes available, traversing classic Rocky Mountain scenery with alpine lakes and high peaks. The area is known for iconic destinations like the Maroon Bells and Hanging Lake.
The Arapaho And Roosevelt National Forests contain a diverse range of terrain suitable for mountain biking. There are more than 35 designated mountain bike trails, including routes for both standard and easy mountain biking. The trails cross landscapes from dense forests to high peaks along the Continental Divide.
Pike And San Isabel National Forests are known for containing some of Colorado's most famous peaks, including Pikes Peak and Mount Elbert, the state's highest point. The forests offer classic Rocky Mountain terrain with more than 45 hiking routes and 30 mountain bike trails. The area's landscape features unique rock formations and expansive aspen groves.
The San Juan National Forest in southwestern Colorado provides a setting for numerous outdoor sports. Hiking is a primary activity, with over 40 designated trails through its rugged mountain landscape. The forest also offers more than 20 mountain bike trails and 20 touring cycling routes across its 1.8 million acres.
Yes, many forests in Colorado offer trails suitable for beginners and families. For example, within the aggregated routes for Arapaho And Roosevelt National Forests, there are 15 designated easy mountain bike trails, which often correspond to less strenuous hiking paths. It is always recommended to check a specific trail's elevation gain and distance to ensure it matches the desired difficulty level.
Generally, dogs are permitted on trails within Colorado's national forests, but they must be kept on a leash no longer than 6 feet (1.8 meters) at all times. Regulations can vary in specific high-use areas, wilderness zones, or to protect wildlife. It is always best to check the local regulations for the specific forest and trail before visiting.
Colorado's national forests, such as White River and Arapaho, are managed for multiple uses including recreation, timber, and wildlife habitat, often covering vast, less-developed areas with extensive trail networks. National Parks in Colorado, like Rocky Mountain National Park, are managed primarily for preservation and visitor experience, sometimes with more developed infrastructure and stricter regulations. Both offer routes for hiking and cycling, but the scale and management philosophy differ.
Colorado's forests provide a wide range of cycling opportunities. This includes over 100 mountain bike trails across the six major forests, from easy to advanced. Additionally, there are numerous routes for road and touring cyclists on paved and gravel roads that wind through the forest landscapes, such as the 20 designated touring routes in Pike And San Isabel National Forests.
The Rio Grande National Forest features a highly diverse landscape in south-central Colorado. It encompasses the headwaters of the Rio Grande River and includes high peaks of the Sangre de Cristo and San Juan mountains, as well as high-elevation deserts and rugged canyons. This variety provides a varied environment for its 50+ hiking and cycling routes.

