Waw an Namus is an exotic volcano deep in the desert of Libya. A low caldera about 4 km in diameter is surrounded by a 5 - 10 km wide dark black deposit of ash that stands out starkly against the yellowish desert. The few people who have visited have been struck by its beauty: The Italian geologist Angelo Pesce wrote that as seen from the rim, one is "overwhelmed by a scene of rare beauty....Inside, the only thing one wishess is to be alone and wander in admiration from one end to the other."