NPSpecies

Smith et al. (2004) found 1 or 2 individuals in the park. Rattlesnakes are of a concern to the park staff for human safety issues. For example, they have had to move two rattlesnakes since Sept 2002, one from the basement of the commissary building (where the visitor center and park headquarters is located) and one from maintenance's bone yard near where an archeological crew was camped. Park staff also almost stepped on a small rattler while spraying tamarisk June of 2004.; Data Source: Smith et al. (2004)