The dominating geographical feature here is the Nevado de Toluca volcano, with a significant part of the National Park being located in the municipality. Elevation here varies between 3,200 and 2750 meters above sea level and the soil is made of composites from past lava flows and ash deposits from the nearby volcano, which is now dormant. Some other smaller volcanoes exist here, such as the Molcajete, which were formed by the Nevado’s third stage of eruptions. Surface water is mostly in the form of the Tejalpa River, some small streams and some fresh water springs, all of which are fed by the runoff from the Nevado de Toluca. The area has a temperate, mildly wet climate with freezes common in the foothills of the volcano. Highs in the summer are around 28C with lows in the winter can get to −5C. Most rains falls between the months of June to October. Much of the wild vegetation is forest with pines, cedars and fir trees, which mostly exist in the national park, along with most of the wildlife, which includes squirrels, opossums, coyotes, eagles, crows and some snakes and other reptiles.