Global Range: (5000-20,000 square km (about 2000-8000 square miles)) Range formerly extended from southern Arizona, southern New Mexico, and western Texas south through much of northern and central Mexico. As of the mid-1990s, none occurred in the U.S. and very few or none remained in Mexico (most likely in eastern Sonora, western Chihuahua, and Zacatecas) (Johnson 1991; USFWS, Federal Register, 1 May 1996). In 1998, reintroductions began within an area (Blue Range Wolf Recovery Area) encompassing a portion of eastern Arizona and western New Mexico. This area is part of a larger "Nonessential Experimental Area" extending across much of Arizona and New Mexico and a small portion of far western Texas. Currently, free-ranging wolves exist in both Arizona and New Mexico (USFWS 2013).
See Hoffmeister (1986) for information on runways or hunting beats that historically were used in southern Arizona.