2013 Map of McNary

About this map

McNary and the surrounding borderlands of the Rio Grande Valley are defined by a complex network of irrigation and drainage infrastructure in this 2013 survey. The landscape is dominated by engineered waterways such as the Diablo Lateral, Madden Lateral, and Wells Drain, which support agriculture in this arid region. The Rio Grande serves as the international boundary, with Bayers Crossing and the settlement of Ninety positioned near its banks. The terrain transitions from the alluvial plains of the river valley into the dry desert washes of Arroyo Diablo and Madden Arroyo. Modern transportation routes like Ranch Road 192 and Wilkey Rd connect the scattered riverside communities. The presence of the Madden Ponding Area and the Lower Drain highlights the ongoing management of water resources along this critical border corridor.