Can you talk more about the lawless hunting club-ruled area? Or provide a name for more research - it's hard to tell exactly which feature is being pointed to on the map you linked.

It's called River Ranch Acres and on the map it's the area south of Highway 60/Hesperides Rd and east of Highway 630 E with the dirt roads throughout. The Triple Canopy Ranch to the west mostly surrounded by a canal (moat?) is not part of it. I believe there is a book titled "Redneck Riviera" written by a man who inherits some land there and attempts to take possession of it.