| The sun beats down, melting the glaciers that feed water into the streams, irrigating settlements and creating oases of willows and poplars. |
| Every town must have oases of greenery where children can run and play and other leisure activities can take place. |
| Throughout the deserts it was only dependably found at some waterholes and at various springs associated with oases. |
| The biological oases are open waters, called polynyas, where blooming plankton support the local food chain. |
| Cool oases carpet the valley after the gentle Touzlimt Pass, and amazing whorls and swirls of strata arc across the eastern mountains. |
| Villages of mud huts dot the hillsides and oases of green amid the barren wilderness provide sanctuary for its denizens. |
