Rabbitbrush grows in disturbed areas such as roadsides and walkways. Several non-native species of trees have been planted at the campground and group use area to provide shade. Few cactus species grow in areas of climate extremes such as Cathedral Gorge, where temperatures may fall below freezing in the winter or rise above 100F in the summer. Deer browse in the area around Miller Point and many venture into the Gorge during the late fall and winter. Several species of nonpoisonous lizards and snakes are abundant, and in the summer, the Great Basin rattlesnake may be found.
Birds are common, around the campgrounds and in shrubby areas.
Park residents include ravens, kestrels and small hawks, roadrunners, sapsuckers, robins, black-throated sparrows, finches, blackbirds, and starlings. Migratory birds include tanagers, cedar waxwings, warblers, bluebirds, and hummingbirds. An updated list of wildlife is available at the Regional Information Center. All vehicle operators must be licensed. Drive only on designated roadways.