Humans and animals feast on the delicious water at Guelta Mourzo. Note the steep rock face that prevents the sun's rays from entering, thus keeping evaporation to a minimum. - Tibesti - Chad - 1967
Humans and animals feast on the delicious water at Guelta Mourzo. Note the steep rock face that prevents the sun's rays from entering, thus keeping evaporation to a minimum. - Tibesti - Chad - 1967