Support Friends of Chino Hills State Park Help the Friends of Chino Hills State Park continue its work. We are a 501(c)(3) non-profit organization (EIN# 33-0542316) and we are able to accept tax-deductible donations via US mail and online through Square. Donate On-Line MAIL YOUR DONATION Checks should be made payable and mailed to: Friends of Chino Hills State Park 4500 Carbon Canyon Road Brea, CA 92823
