The Gray Fox has a huge range. It is found in southern Canada, throughout the United States, Mexico and Central America, and in the northern part of South America. Because it is mostly out during the night, however, it’s an animal that people seldom see. A Gray Fox can be from 30 to 45 inches in total length, and can weigh from 8 to 15 pounds. It is one of the few dog-like wild animals that can climb trees.