2017 Map of Arch NW

About this map

Portales Valley defines the southern reach of this agricultural landscape in Roosevelt County, where the high plains of eastern New Mexico are organized by a rigid grid of rural roads. This section of the Llano Estacado reveals a pattern of land use typical of the early 21st century, with long, straight thoroughfares such as Blackwater Rd and S Roosevelt Rd 6 segmenting the territory into large township blocks. The terrain is marked by numerous small, seasonally dry depressions and gentle undulations characteristic of the area's wind-swept geology. While no major towns occupy this specific quadrangle, the systematic numbering of routes like S Roosevelt Rd K and S Roosevelt Road J reflects the enduring importance of the Public Land Survey System in managing this expansive ranching and farming corridor.