Abstract
Introduction The Mount Livermore area is geologically a part of the Front Range of the Western Cordilleras, a system which reaches its easternmost extension in the United States within that section of western Texas known as the TransPecos Region. Livermore itself is the highest point in the Sawtooth Range of the Davis Mountains, a small system originating in deformational movements during late Cretaceous time. Succeeding periods of erosion, lava flows, other deformational movements, and the severe erosion of recent time have formed a lava canyon region covering several hundred square miles. Baker and Bowman (1917) describe the Sawtooth Range as a broad, low anticline of intrusive porphyritic syenite. The major axis of the range has a general northwest-southeast direction, Mount Livermore occupying almost a middle position. The whole range probably marks a line of fissure eruptions of which the cliffs of the highest peak are typical examples (Fig. 1).
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