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1982 Map of Galvan Ranch

Name: 1982 Topographic Map of Galvan Ranch
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1982

About this map

Galvan Ranch anchors this portion of Webb County, representing the specialized ranching economy of the South Texas brush country during the early 1980s. The landscape is defined by an intricate network of ephemeral drainages, including Tierra Blanca Creek, Santa Isabel Creek, and Cuchara Creek, which dictated the placement of essential water infrastructure.

Strategic water management is evident through numerous named catchments such as Saladero Tank, Little Prairie Tank, and Milk Cow Tank. These features, along with Tanque Del Medio and Huisache Tank, illustrate the critical importance of localized water sources for livestock in this semi-arid environment. The distribution of these tanks across the quadrangle provides a clear view of how land use was organized around the ranching operations and natural creek beds like Chalker Creek.