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George C. Engerrand
Contributor
LOCATION: Austin, TX, United States
Graduate Professor of Anthropology, University of Texas at Austin. Chief Geologist, Mexican Geological Survey, 1907–15.
Primary Contributions (1)
![Sierra Madre](https://cdn.britannica.com/58/3058-050-E9323D32/Sierra-Madre.jpg?w=320&h=240)
Sierra Madre, mountain system of Mexico. It consists of the Sierra Madre Occidental (to the west), the Sierra Madre Oriental (to the east), and the Sierra Madre del Sur (to the south). These ranges enclose the great central Mexican Plateau, which itself is a part of the system—although the northern…
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