The Empty Quarter Desert is the largest dune in the Kingdom of Saudi Arabia. It is the largest sand surface in the world, covering an area of about 430,000 km2 within Saudi territory. Located in the southeast of the Kingdom, it spans three administrative regions: the Eastern Province, the Riyadh Province, and the Najran Province. It occupies 67.7 percent of the total sand formations in the Kingdom and covers 22 percent of the total area of Saudi Arabia. The Empty Quarter designation The region ...