N.M. Stat. § 4-26-1
[County boundaries.]
The boundaries of Santa Fe county shall be defined as follows: commencing at the
southeast corner of township eight north, range eleven east; thence north between
ranges eleven and twelve east, to the northeast corner of township twenty north, range
eleven east; thence west between townships twenty and twenty-one north, to the
northwest corner of township twenty north, range seven east; thence south between
ranges six and seven east to the southwest corner of township eight north, range seven
east; thence east between townships seven and eight north to the place of beginning.