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1985 Map of San Ygnacio

Name: 1985 Topographic Map of San Ygnacio
Creator: U.S. Geological Survey
Published: 1993
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1993

About this map

The Rio Grande serves as the dominant spine of this borderland survey, marking the international boundary between Texas and Mexico. Near the northern edge, the urban centers of Laredo and Nuevo Laredo straddle the river, while further south, the historic settlement of San Ygnacio sits on the riverbank amidst a landscape carved by numerous arroyos. To the east, the Texas Mexican RR cuts across the brush country, connecting the interior through small rail points like Aguilares and Lobo.

Energy production and ranching define the terrain away from the river, evidenced by an extensive Oil and Gas Field and scattered Gravel Pits. The topography is characterized by a dense network of intermittent drainage ways, such as Chacon Creek and Arroyo Canelo, which flow toward the Rio Grande from the higher ground of the Mendez Hills. This map documents a region where binational commerce, transit, and resource extraction intersect in the South Texas brushlands during the mid-1980s.