Venomous snakes do not exist in this high-elevation park. Only harmless, non-venomous snakes and lizards live in the park and preserve. Rattlesnakes are occasionally seen in lower elevations of the San Luis Valley, primarily in rocky areas. Deer, Elk, Pronghorn, and Small Mammals. Deer, pronghorn, and elk are often seen in the park and on park roads. Be alert and drive slowly, especially at night, to avoid hitting one of these animals.
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