Walsh appeared in studio on The Howard Stern Show on June 12, 2012 and talked about how the lyrics to the song came to him in 1972 shortly after releasing his first solo effort, Barnstorm.

I’m living in Colorado and I’m mowing the lawn. I look up and there’s the Front Range of the Rocky Mountains and there’s snow on them in the summer. And it knocked me back because it was just beautiful. And I thought, well I have committed. I’m already in Colorado and it’s too late to regret the James Gang. The Rocky Mountain Way is better than the way I had. Because the music was better. I got the words, bam! I got all of the words all at once and ran into the house to write the words down. The lawn mower kept going over into the neighbor’s yard and ate the garden. It was an expensive song to write!