We head north today, and we have the luxury of the main tar road for our whole journey, no gravel road ‘African Massage ’to contend with, as we head back to Windhoek.
Namibia is so rich in interesting things that it is impossible to drive for any great distance without passing places of interest, and there are several worth mentioning along the way today. About 80 km from Keetmanshoop, we can see a tall mountain peak in the distance, off to the west. This is Brukkaros, another volcano, but quite an unusual one. Brukkaros formed around 180 million years ago, when molten magma from deep below the surface was pushed upward, intruding into the overlying, relatively soft sedimentary formations that covered the surface. Molten magma intrusions are common in worldwide geology, but what makes Brukkaros unusual is that in this case, the upward-moving magma hit an underground lake, leading to a colossal explosion powered by superheated steam. What was left formed a hollow cave, which was once the magma chamber, but with an overhead ‘caldera’ forming a partial roof. 80 million years later, the weight of the caldera was too much, and it collapsed into the magma cave.
Brukkaros is 1,590 m tall at its highest point, and the collapsed caldera measures about 4 km in diameter. The mountain itself is 650m higher than anything else in the area, and the crater floor is 350 m below the rim. Steam-formed volcanoes are very rare, and although Brukkaros is too far away to be included on this itinerary, it is a fascinating landmark to look out for on our drive today.
About 150 km into our long road today, we will pass a signpost to a place called Gibeon. Again, like Brukkaros, Gibeon is too far away to be included in this itinerary, but there is an interesting story that is worth telling.
Near here, in ancient prehistoric times, the area around what is now Gibeon was struck by a meteor of significant size. The meteor, when intact, was thought to measure 4 x 4 x 3 meters, and we know that it was made of solid metal. As it entered the earth’s atmosphere, the metal began to melt, and in due course, the meteor fragmented in a huge explosion, scattering chunks of molten metal across the countryside. Meteors from this event have been found as far away as Brukkaros Volcano to the south and as far away again towards the north. Still, the greatest concentration of meteor material has been found in and around Gibeon.
If you have time in Windhoek after our safari, it is worth going to Post Street Mall in the city centre, where you will find a public display of Gibeon Meteorites
Still heading ever north, our journey today takes us through the small centres of Mariental and Rehoboth, and we will stop along the road today for a light lunch. We aim to be back in Windhoek in the late afternoon.
You will be dropped off at your accommodation within the Windhoek City limits.