What makes the gray fox (Urocyon cinereoargenteus) stand out from other canine species? Its ability to climb trees! Gray foxes have been spotted in Red Rock Canyon not only on the ground near rocky terrain and shrubs, but also resting high up in trees. These creatures feast on a mixed diet of fruits, small mammals, and invertebrates and are primarily active during the night. Gray foxes are about the size of a small to medium sized dog, feature a gray outer coat with an orange inner coat, and normally weigh 8 to 16 pounds. Try looking within the Willow Spring Picnic Area to spot one of these creatures during dawn & dusk hours.