The fall colors don’t last long in Colorado. There is a lot of brown. But even the brown looked gorgeous to me today as I was struck by this feeling of joy as I was running among fallen leaves and cool weather.

The view of the Flatirons was a bit hazy too, but the brown everywhere added to my feeling of running in the fall, my favorite time of year.

I’ve been running this East Boulder Trail since 1990, well before Chris Lear made it famous in his Running with the Buffaloes c...