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2019 Map of Bullis Gap

Name: 2019 Topographic Map of Bullis Gap
Creator: U.S. Geological Survey
Published: 2019
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2019

About this map

The Rio Grande carves a deep international boundary through the Big Bend region, defining the southern reaches of this Brewster County landscape. This 2019 survey documents the protected corridor of the Rio Grande Wild and Scenic River, where the terrain rises sharply from the riverbanks toward the Bullis Gap Range. The map reveals a network of high-desert drainage systems including Kellogs Canyon, Jackson Canyon, and Palmas Canyon, which navigate the complex topography of the Trans-Pecos.

Evidence of historical land use in this arid environment is found in the scattered water catchments like Bullis Gap Tank and Britton Tank. These vital water sources support the remote passes of Bullis Gap and Cedar Gap, which served as traditional points of transit through the limestone breaks. The map provides a precise view of the border, where the peak of Loma de las Palmas stands as a prominent landmark overlooking the winding river valley.