The earth is slow to absorb the water because clay is often deposited in the bed of the receding rivers, as seen here on the track between El Beyed and Ouadane in Mauritania. - 1970
The earth is slow to absorb the water because clay is often deposited in the bed of the receding rivers, as seen here on the track between El Beyed and Ouadane in Mauritania. - 1970