Where the air is thin, fall colors are nearing their peak.
In higher, colder parts of Colorado, autumn has arrived. So we hit the road up Corona Pass in Grand County and Jones Pass Road in Clear Creek County to document the changing of the leaves.
Here's what we saw along the way.
NOTE: If you venture up Corona Pass, be aware that it is a steep, unpaved road. Only attempt in a 4WD vehicle.
Aspen leaves changing color on Corona Pass in Winter Park, Colo., Sept. 21, 2025. 
A trail off of Grand Park Drive in Winter Park, Colo., Sept. 21, 2025.
A jeep coming down Corona Pass in Winter Park, Colo, during peak leaf-peeping season, Sept. 21, 2025. 
Fall colors line the side of Jones Pass Road in Berthoud Falls, Colo., Sept. 21, 2025.
