Erosion carves valleys into ash and lava flows on the slopes of a primeval volcano caldera. Crater Highlands, Ngorongoro Hig, African Rift Valley , Serengeti National Park, Tanzania

Erosion carves valleys into ash and lava flows on the slopes of a primeval volcano caldera. Crater Highlands, Ngorongoro Hig, African Rift Valley , Serengeti National Park, Tanzania
