HaMakhtesh HaGadol
Makhtesh in Israel
HaMakhtesh HaGadol or simply Makhtesh HaGadol or Makhtesh Gadol, is a makhtesh, a geological erosional landform of Israel's Negev desert. It measures 5 x 10 km.
A makhtesh has steep walls of resistant rock surrounding a deep closed valley. Wikipedia
Management: Israel Nature and Parks Authority