This bench has been in several different locations on Aspen Mountain. It was part of a project through the Aspen Art Museum. The quote on the seatback of the bench is attributed to Hunter S. Thompson. See this article by Emily Larocque (Outside Magazine, October 16, 2006, "Remembering Gonzo--How I survived Hunter S. Thompson, Aspen's best-loved and most notorious resident."): http://www.outsideonline.com/outdoor-adventure/Remembering-Gonzo.html. A quote from the article: "Once, when we were driving back from physical therapy, he had me pull off the road near the airport. 'I used to come out here when I first moved to Aspen,' he said, 'and watch the planes to know I could get out.'"
This is a quote from this Aspen Art Museum page, http://old.aspenartmuseum.org/archive/archive_restless_empathy_artists_projects.html: "Lars Ø. Ramberg’s project uses the late journalist Hunter S. Thompson as a platform for addressing the concept of empathy. Thompson was a longtime Aspen resident who ran for Sheriff in 1970. He committed suicide at his home in nearby Woody Creek in 2005. Ramberg has created memorial benches for Hunter S. Thompson based on the standardized memorial benches commonplace throughout town. The benches are installed throughout Aspen, each including quotes from Thompson that add up to a larger text characteristic of what Ramberg terms Thompson’s “warm anarchism,” and upending the sentimentality associated with memorializing."
Two photos of the bench are below. Click on the photos to enlarge them.