Great Gibraltar Sand Dune

Great Gibraltar Sand Dune
View of the dune and eastern Mediterranean coast of Gibraltar from the Rock of Gibraltar.
View of the dune and eastern Mediterranean coast of Gibraltar from the Rock of Gibraltar.
Great Gibraltar Sand Dune is located in Gibraltar
Great Gibraltar Sand Dune
Great Gibraltar Sand Dune
Location of the Great Sand Dune within Gibraltar.
Coordinates: 36°08′03″N 5°20′36″W / 36.134166°N 5.343221°W / 36.134166; -5.343221
AgePleistocene
Topo mapOS Gibraltar

The Great Gibraltar Sand Dune is an ancient sand dune in the British Overseas Territory of Gibraltar. It forms part of the Upper Rock Nature Reserve and dominates the eastern cliffs of the Rock of Gibraltar. It was once used to capture rainwater which was contained in underground tanks within the Rock to satisfy the population's potable water needs.