Physiographic provinces of the State of Mexico, Mexico (modified from Cervantes-Zamora et al. 1990).
Part of: Lemos-Espinal JA, Smith GR (2020) A conservation checklist of the amphibians and reptiles of the State of Mexico, Mexico with comparisons with adjoining states. ZooKeys 953: 137-159. https://doi.org/10.3897/zookeys.953.50881