Slab City
Slab City is located just a few miles from Salvation Mountain. Wikipedia describes it as:
Slab City or The Slabs is largely a snowbird community, and is used by recreational vehicle owners and squatters from across North America. It took its name from concrete slabs that remained from the abandoned World War II Marine Corps barracks of Camp Dunlap.
Several thousand campers, many of them retired, use the site during the winter months. The "snowbirds" stay only for the winter before migrating north in spring to cooler climates, nonetheless, there is a group of around 150 permanent residents who live in "The Slabs" year round. Some of these "Slabbers" derive their living from government programs and have been driven to "The Slabs" by poverty. Others have moved to "The Slabs" to learn how to live off the grid and be left alone. Still others have moved there to stretch their retirement income.
The site is both decommissioned and uncontrolled, and there is no charge for parking. The site has no official electricity, running water, sewers, toilets or trash pickup service. Many residents use generators or solar panels to generate electricity.