White River National Forest is a National Forest in northwest Colorado. It is named after the White River that passes through it. It also contains the Flat Tops Wilderness Area, largely considered the birthplace of the U.S. Wilderness Area system. Nestled in the heart of the Rocky Mountains, the 2.3 million acre White River National Forest is the top recreation Forest in the nation. Home to world-renowned ski resorts and the birthplace of Wilderness, the White River has something to offer every outdoor enthusiast.