The 897-acre Mariposa Reserve is behind locked gates on Black Star Canyon Road, five miles north of Santiago Canyon Road in the foothills of Orange County. TWC owns and manages this property as a habitat reserve surrounded by the Cleveland National Forest. Important habitats include: coastal sage scrub, valley needlegrass, sycamore riparian woodland, coast live oak riparian forests, rock cliffs and outcroppings, and chaparral. The reserve is important to many imperiled birds and is often traveled by two radio-collared mountain lions. There are abundant displays of spring wildflowers dominated by Mariposa Lilies.


The reserve is accessible daily by foot, mountain bike, and horse. Park at the gate at the end of Black Star Canyon Road and proceed up the main dirt road. (Remote parking is at owner's risk) Please respect private properties and stay on the road until you are within the National Forest. For additional information contact TWC's headquarters at (909) 797-8507.