The Potrero Ridge Open Space encompasses a low-lying ridge that runs east to west in Newbury Park. This area, which totals 205 acres, includes grassy hillsides, coastal sage scrub, and oak woodlands, and is accessed from a trailhead on Wendy Drive. A trailhead on Reino Road provides additional access to this area and to the Dos Vientos Open Space to the west. Most of this area is owned by COSCA.
