Be outstanding examples representing major stages of the earth evolutionary history, including the records of life, significant on-going geological processes in the development of landforms, or significant geomorphic or physiographic features.

Be outstanding examples representing significant on-going ecological and biological processes in the evolution and development of terrestrial, fresh water, coastal and marine ecosystems and communities of plants and animals.

Contain the most important and significant natural habitats for in-situ conservation of biological diversity including those containing threatened species of outstanding universal value from the point of view of science or conservation.

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