WHERE on earth is left to explore?

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* The Paraguayan Gran Chaco is a largely inhospitable thorn forest where some of the Indian tribes have never had contact with the outside world.

* Great Atrato Swamp in the Darien jungle between Panama and Colombia is a deep forest area of insects and alligators, so difficult to negotiate that it’s mostly unexplored.

* The hill country of Burma, is said to be rich in treasures and lost cities but has been rarely explored since 1946 because of the closed border.

* The sheer difficulties posed by the high ice desert of Greenland means its largely unexplored. As are the tributaries of the Blue Nile in Ethiopia

* The Gangkhar Puensum has the distinction of being the highest un-climbed mountain on earth. The government of Bhutan has prohibited climbing the mountain due to religious beliefs.

* Vast areas of Siberia are largely either ice or mountain waiting to be fully explored.