[Frumious Bandersnatch]

It was just about 15 or 20 years ago that the Brazilians discovered a major river that they did not know even existed. This river drained more than the Mississippi. It was discovered using infra-red photography (the river was completely hidden with foliage). My point is that there are huge tracts of land which remain essentially unexplored. So I'm not surprised at all by your assertion.

[JeepInMazar]

It was just about 15 or 20 years ago that the Brazilians discovered a major river that they did not know even existed. This river drained more than the Mississippi. It was discovered using infra-red photography (the river was completely hidden with foliage). My point is that there are huge tracts of land which remain essentially unexplored. So I'm not surprised at all by your assertion.

Thanks for mentioning this. So many people seem to believe that everything there is to discover about the earth has already been discovered.