![Four Pass Loop](https://www.aspentrailfinder.com/wp-content/uploads/2014/05/Four-Pass-Loop-Trail-Maroon-Bells-Snowmass-Wilderness-150x150.jpg)
Connects: Aspen to Crested Butte, Marble to Crested Butte, Three Pass Loop, Maroon Lake (9,585 ft), Maroon Bells Scenic Trail, Maroon-Snowmass Trail, Crater Lake Trail, Crater Lake (10,076 ft), West Maroon Trail, West Maroon Pass (12,465 ft), Frigid Air Pass…