N.M. Admin. Code § 19.27.65.11
Beginning at the southern boundary of section 21, township 34 south, range 21 west, NMPM, at the point of the intersection of the of the international border between the United States and Mexico with the drainage divide between the Cloverdale basin and the Yaqui river stream system; thence west along said international border approximately 3.7 miles to the intersection of the of the international border with the of state line between New Mexico and Arizona; thence north on the New Mexico - Arizona state line a distance of approximately 10.7 miles to its intersection with the northern boundary of projected section 35, township 32 south, range 22 west, NMPM; thence due east approximately 1.5 miles along projected section lines to the intersection with the drainage divide between the Cloverdale basin and the Yaqui river stream system; thence southeasterly along said drainage divide to the intersection with the international border between the United States and Mexico, a point on the southern boundary of section 21, township 34 south, range 21 west, NMPM, being the point of origin
N.M. Admin. Code § 19.27.65.11