Extended over the high slopes of the canyon and the dam, it covers most of the conservation area, and configures the typical landscape of the Mexican highlands.
Most of the spontaneous flora is deciduous or annual, which offers a noticeable contrast between the dry and rainy seasons, when the mountain is covered with foliage and multicolored blooms. On the shrub layer and some grassland areas, old mesquites and acacias rise, along with some arborescent cacti, such as nopales and columnar cacti. garambullos, with its characteristic candlestick shape.
In addition to some species of mammals and reptiles, the thicket is populated by a wide variety of birds that can be seen at different times of the year.