CRESTED BUTTE, Colo. — Aspen trees are the celebrities of a Colorado fall day. Think about it. People line the roads to take pictures with them. Instagram feeds from all over the state feature ...

Examples of Bayer's Aspen Institute for Humanistic Studies and city of Aspen logo design. Image is comprised of a black aspen leaf with music note within (Aspen Music Festival, 1957). Credit Line ...

This is our celebrated tree of fall, the quaking aspen so named for those leaves that flicker in the breeze, twinkle in the sun and stir our souls. Maybe you didn't know that about the name.