2 Words to use with arid

Three points I longed to ascertain carefullythe relative heights of the water in the two craters; the height and nature of the spot where the lava stream issued; and lastly, if possible, the actual causes of the locally famous Rabacca, or 'Dry River,' one of the largest streams in the island, which was swallowed up during the eruption, at a short distance from its source, leaving its bed an arid gully to this day.

For the purpose of obtaining a good road, an elevated arid ridge had been pursued much of the way.

2 Words to use with  arid