In northern California, Henry Cowell Redwoods State Park is home to an elfin forest with Mendocino cypress ("Cupressus pigmaea"), and Sargent's cypress ("C. sargentii"), which is partially within a section of the Zayante Sandhill Area. On the Central Coast of California, on the southeastern shore of Morro Bay, Los Osos contains the El Moro Elfin Forest Natural Area. The area is approximately 90 acres. It derives the “elfin forest” title from the short California live oaks, which range in height from 4 – 20 feet, compared to the typical 30–80 feet. This region also contains the federally endangered Morro shoulderband snail ("Helminthoglypta walkeriana"). At a higher altitude, on Cuesta Ridge, the Land Conservancy of San Luis Obispo County manages the San Luis Obispo Elfin Forest of dwarf cypresses.