In reply to benmorr:
It might interest you, in that case, to read about Camp Catta*, the climbers' camp at the foot of the cliffs. Take the time to read about their reforestation** programme, their relationship with the village and the villagers. Be careful not to fall of that horse.
*Created by French climbers over twenty years ago, the name is a pun on Yosemite's Camp quatre and also the local name for the lemurs.
**The local population (and of course that of much of the rest of Madagascar) have cut down most of the trees for fire wood.