The Late Lone Tree of Tenere

tree_of_tenere_1, originally uploaded by Alihodza.

"The Tree of Ténéré, was a solitary acacia, of either Acacia raddiana or Acacia tortilus, that was once considered the most isolated tree on Earth — the only one within more than 400 km. It was a landmark on caravan routes through the Ténéré region of the Sahara in northeast Niger — so well known that it is the only tree to be shown on a map at a scale of 1:4,000,000...It was the last surviving tree of a group of trees that grew when the desert was less parched than it is today. The tree had stood alone for decades. During the winter of 1938–1939 a well was dug near the tree and it was found that the roots of the tree reached the water table 33–36 meters below the surface."

from wikipedia.org/