
Sierra Grande dominates the eastern landscape of this high-plains terrain in Union County, its volcanic slopes rising sharply above the surrounding ranching country. The settlement of Capulin sits at the northwestern edge, serving as a focal point near the historic Fort Union Road. This 1972 survey captures a rural environment where water management is critical to the local economy, evidenced by the numerous named water sources distributed across the arid sections, such as Cox Windmill and La Cueva Windmill. Drainage systems like Pinabete Creek and Gallegos Creek carve through the basin, while the presence of several Gravel Pits suggests localized mineral extraction. The network of unimproved roads and a Jeep Trail winding through the highlands reflect a landscape defined by ranching and the rugged transit routes of northern New Mexico.
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This is the sole edition of this map. No revisions or reprints were ever made.