In the interior mountain ranges, Lampropeltis zonata pulchra occurs primarily in associations of ponderosa, Jeffrey, and Coulter pine, and black oak, and is infrequently found below the coniferous forest associations (Zweifel 1952b, McGurty 1988; pers. observ.), however, the snakes will also follow riparian corridors to lower elevations, such as Oak Grove campground in San Diego County (Hubbs, 2004). At lower elevations and in coastal ranges, it occurs below the edge of mixed oak-coniferous forest in riparian woodlands, usually in canyon bottoms, that have western sycamore (Platanus racemosa), Fremont's cottonwood, coast live oak, willows, wild rose (Rosa spp.), and blackberries. It may be found in narrow riparian woodlands in association with chaparral and coastal sage vegetation types (pers. observ.; see McGurty 1988). Rocks or rocky outcrops appear to be only one element of L. z. pulchra habitat (Hubbs, 2004), probably because they provide suitable refuge sites and they harbor the necessary food resources. Such locations may also provide overwintering sites, however, L. z. pulchra can also be found on chaparral covered hillsides in the Santa Monica Mountains, Santa Ana Mountains, and all other mountainous habitat they occupy, far from any rock. The snakes live underground in all areas, and those lacking rocky cover simply utilize rodent burrows for refuge (Hubbs, 2004).