When to go
Colorado's aspens usually turn from mid September into early October. Higher elevations and northern areas change first, so if you miss the peak in one spot, head lower or further south.
Drives worth the trip
The Peak to Peak Highway runs along the Front Range between Estes Park and Black Hawk, and is the easiest big color drive from Denver. Guanella Pass, out of Georgetown, climbs through aspen stands to views of the high peaks.
Further out, Kebler Pass near Crested Butte is famous for its enormous aspen groves, and Last Dollar Road near Telluride is a rougher road with huge views that is best in a high clearance vehicle.
The Maroon Bells
The twin peaks reflected in Maroon Lake near Aspen may be the most photographed view in the state. Access is managed with reservations during the busy season, so book your shuttle or parking ahead.