Some more oasis information:
The water is scalding hot, brown, muddy, and bitter smelling—in other words, normal for an Athasian oasis...
There is plenty of long green grass growing on the edge of the pool, and the mudflats are covered with healthy foliage. A closer inspection reveals that the pool is surrounded by dead birds, lizards, and small mammals.
The mud around the oasis is steaming hot. Further, it smells terrible and is crawling with disgusting worms and beetles.
This oasis is also dotted with yypr trees. These stand fifty feet tall and grow equally well in the muddy areas of the oasis or the sand at its edge. They are conifers, with hard, flat needles.
A small bridge of yypr wood leads to this marble arch which was built by the preceding Athasian civilization. At the base of the arch are a dozen clay pots, all filled with various grains, fruits, and vegetables. All of these foodstuffs are moldy. Scattered here and there on the wooden bridge are leaves and stems of a purple herb.