by Alf Gillman on Flickr.Deriba Caldera – a 5km diameter volcanic caldera in Western Sudan.
#lake, #rift, #soudan, #Afrique, #africa
by Alf Gillman on Flickr.Deriba Caldera – a 5km diameter volcanic caldera in Western Sudan.
#lake, #rift, #soudan, #Afrique, #africa
