It may be a great day for riding off road, but we’d like to remind you riding off highway vehicles on private property is considered trespassing. Off highway vehicles, such as ATVs, are also prohibited from riding on surface streets and unauthorized open space areas in LA County. Avoid citation and make sure where you ride is permitted. Visit ohv.parks.ca.gov for more information on trails, parks and staging areas suitable for operating off highway vehicles.
Original source can be found here.