This is the Yellowstone Grizzly known as Quad Mom, crossing the road at Golden Gate. She was in and out of this shadow in the narrow canyon so quickly that only one of the three frames I shot was usable. It almost looks like there's a spot light on her, but she is actually walking toward the setting sun. The shot was taken with a Canon 5D mk 3 with a 500mm f/4 and 1.4 T.C. mounted on a gitzo tripod with a wimberly II head.