Mulholland Ridge Open Space Preserve is a 260 acre park atop Donald Drive on the Moraga/Orinda border. The park offers spectacular views of the valley and Mount Diablo. Ridge trails connect to the Hacienda de las Flores park in Moraga and the Orinda trail network.
Dogs are permitted off-leash on the paved portion of the Mulholland Ridge Trail. Dogs must be leashed on the unpaved portions and remain under the owner's control at all times.