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2012 Map of Isla

Name: 2012 Topographic Map of Isla
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

The Rio Grande serves as the focal point for this borderland geography, where an intricate network of irrigation and drainage channels defines the local agricultural economy. Features such as the Hansen Lateral, Fabens Drain, and Riverside Canal crisscross the landscape on San Elizario Island, reflecting the long-standing management of water in this arid environment. The settlement of Isla is situated north of the river, surrounded by a grid of rural roads named for local families and landmarks.

Transportation routes like Island Rd and Jess Harris Rd connect the scattered homesteads and fields to the larger corridor marked by Tornillo Spur. Near the southern bend of the river, the Guadalupe Bridge provides a vital crossing point, while the Border Drain runs parallel to the waterway. This survey captures the specific arrangement of lateral canals and waste channels, such as the Fabens Waste Channel, that have supported farming life in this section of the valley for generations.