Distribution of Southern Pocket Gopher (Thomomys umbrinus) (Geomyidae: Rodentia: Mammalia)

Pocket Gophers are fossorial rodents that create and inhabit extensive underground burrow systems, from which they emerge only rarely. Only certain types of soil are suitable for burrows, in consequence the ranges are highly disjunct. A total of 215 subspecies are recognized in the southwestern United States and northern Mexico. They vary widely in pelage color, often so as to match the local soil type.