2011 New Mexico Statutes
Chapter 4: Counties
Article 9: Grant County, 4-9-1 through 4-9-2
Section 4-9-1: Original county boundaries.

4-9-1. [Original county boundaries.]

All that portion of the territory of New Mexico embraced within the following boundaries, to wit: commencing at the corners of townships twenty and twenty-one south, range seven and eight west, which said corners are about four miles northeasterly from Fort Cummings, in Dona Ana county; thence running northerly in a direct line across the summit of the Sierra Mimbres to a point due west of Ojo del Muerto; thence west to the western boundary of the territory; thence south along said boundary to the southwest corner of the territory; thence following the southern boundary of the territory eastwardly to a point on said southern boundary due south of the place of beginning; thence north to the place of beginning, shall form and constitute a new county to be called Grant county.