Join the Chino Hills State Park Interpretive Association, Hills For Everyone and California State Parks as we celebrate the grand re-opening of the Chino Hills entrance to Chino Hills State Park. The Details Saturday, June 27, 2015 Drop in from 9 AM - 12 PM Rolling M Ranch in Chino Hills State Park 4721 Sapphire Rd., Chino Hills The Activities Native Plant Walk Balloon Artist Kids Crafts Light Refreshments Informational Booths Face Painting Interpretive Programs Volunteer Sign Ups much more Download … Read More