Fig. 14 in Observations on Garter Snakes of the Thamnophis eques Complex in the Lakes of Mexico's Transvolcanic Belt, with Descriptions of New Taxa

Fig. 14. The Lago de Magdalena, Jalisco, as it looked when it still existed during the first half of the 20th century. Adapted from a map in the Atlas Geográfico de los Estados Unidos, published in 1946. Redrawn by W.H. Brandenburg.