California has its own laws regarding property issues, as does every other state. When two or more parties differ in their interpretations of existing agreements, real estate disputes sometimes arise. That's what happened in another state to a family who happens to own property near a popular local fishing spot on the river.
A man built his family a home near the river in 2011. However, he and his wife noticed that many people were driving pickup trucks across a particular strip of their land to access the river and haul loads of fish they caught out of the area. The couple believed the constant vehicle activity would contaminate the land (and perhaps, the water) and was damaging the property they believed they owned.
The homeowner tried to rectify the situation by posting a sign that stated vehicles were only welcome if they transported elderly or disabled occupants. The man said he and his wife had no problem with people walking to and from the river to fish. The situation wound up in litigation, and at one point, the couple is said to have placed a boulder in the path that the trucks used to get to the water.
The particular fishing location in question is apparently of significant historical value in the area; natives have reportedly been going there to fish for thousands of years. Alaska state law (which is where the events transpired) grants an easement on property that is accessed without permission for 10 years. A California property owner currently facing real estate disputes may reach out for support by requesting a consultation with an experienced attorney who can advocate on the owner's behalf, particularly if the situation leads to litigation.
Source: lansingstatejournal.com, "What if things go wrong in a real estate transaction?", Meghan Webber, July 29, 2017