The MakhtesGadolCenter Desert

The Negev covers more than half of Israel, over some 13,000 km² (4,700 sq mi) or at least 55% of the country's land area. It forms an inverted triangle shape whose western side is contiguous with the desert of the Sinai Peninsula, and whose eastern border is the Arabah valley. The Negev has a number of interesting cultural and geological features. Among the latter are three enormous, craterlike makhteshim, which are unique to the region; Makhtesh Ramon, Makhtesh Gadol and Makhtesh Katan.
source: wikipedia