Forests of pine, juniper and wild walnut cover the gorge and mountains, and various animals and birds inhabit the area. Great monolithic sculptures are found at the top of the pyramid and the ruins of a ball court lie nearby. A museum is also located in the park. This 34,894 acre reserve protects a variety of rare and endangered plants and animal species. A species of wild corn, in danger of extinction, is found in the reserve.
Wildlife includes jaguars, badgers, wild turkeys, and migratory birds.
The vegetation is mostly pine and oak forest mixed with deciduous jungle and savannas. Visitors can enjoy boating and swimming in the lake. This reserve is the hibernation point for the Monarch Butterfly. From November to March, visitors can follow trails to the forests where the butterfly spends the winter months. Make sure you see the Information Center and research areas.