The Angelo Coast Range Reserve, one of the NRS’s most diverse sites, is located on the South Fork of the Eel River. The reserve encompasses four aquatic and at least 26 terrestrial habitat types, including redwood groves, mixed coniferdeciduous forests, meadows, several types of chaparral, and the state’s largest virgin Douglas-fir forest community. Olympic salamanders, flying squirrels, black bears, and federally threatened northern spotted owls are among the old-growth inhabitants. The reserve also protects four undisturbed watersheds, among them the six-square-mile Elder Creek watershed. These pristine aquatic ecosystems support salmon, steelhead trout, river otters, and Pacific giant salamanders.