"Bobby socks" trees near the parking lot of Fountain Paint Pots in the Lower Geyser Basin, Yellowstone National Park

Dead lodgepole pine trees near the parking lot of Fountain Paint Pots in the Lower Geyser Basin. The trees look as if they are wearing white socks; hence, the name, “bobby socks trees.” The dead trees soak up the silica-rich water, turning the lower portion of the trees white. Photo by Diane Renkin, Yellowstone National Park (https://www.flickr.com/photos/yellowstonenps/48318074462).