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1956 Map of Olmito

Name: 1956 Topographic Map of Olmito
Creator: U.S. Geological Survey
Published: 1971
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1971

About this map

Meandering resacas and a complex irrigation network define this South Texas landscape during the mid-twentieth century. The Missouri Pacific Railroad cuts a diagonal path through the terrain, anchoring the small settlement of Olmito and providing a transport spine for the local agricultural economy. The natural hydrology of ancient river channels is visible in the winding curves of Resaca de los Cuates, Resaca del Jardin, and Resaca del Rancho Viejo.

By 1956, human engineering had heavily modified the Rio Grande valley, as evidenced by an extensive system of water management features including the Main Supply Canal, Main Ditch No 2, and various elevated ditches. Smaller community centers like Russeltown and Villa Cavazos appear alongside rural landmarks such as the Olmito Ch and Wardner Ranch. This survey reflects a period when traditional ranching and farming practices relied on a sophisticated grid of siphons and canals to navigate the semi-arid coastal plain.