The Leanin' Tree Museum of Western Art is a private art museum located in Boulder
. It exhibits the private art collection of Ed Trumble, founder and chairman of Leanin' Tree, Incorporated. Trumble is a publisher of fine art greeting cards since 1949. The collection also includes American western art spanning five decades.
Trumble continued on with his own greeting card enterprise, renaming it "Leanin' Tree," and the company embarked on a long period of growth. All the while the young entrepreneur was building and refining an impressive collection of post-1950 fine art of the American West.In 1974, Trumble opened a small public art exhibit area as part of a new company plant. Twenty-five years later, the Leanin' Tree Museum has expanded to display 250 major paintings and 150 important bronze sculptures.The museum is free to the public and is open every day except for specific holidays.