This collage is made from works from multiple authors: this photo by Rich Brooks, this photo by Nicholas A. Tonelli, this photo by Gerry Dincher, this photo by Robert Pos, this photo by Ron Cogswell, and this photo by Joe Haupt. You can view the original photos for a higher resolution version of each.
It is used as the cover photo for sharing on social media for our blog post on Help Us Find Ecoregion Photos.