Public Resources Code § 4295
CHAPTER 3. Mountainous, Forest-, Brush- and Grass-Covered Lands
A person is not required by Section 4292 or 4293 to maintain any clearing on any land if such person does not have the legal right to maintain such clearing, nor do such sections require any person to enter upon or to damage property which is owned by any other person without the consent of the owner of the property.