These are very beautiful, resembling closely many parts of the River Clyde above Glasgow.

The formation is soft calcareous tufa, such as forms the bottom of all this basin.

The banks are perpendicular on the side to which the water swings, and sloping and grassy on the other.

The slopes are selected for the pitfalls designed by the Bayeiye to entrap the animals as they come to drink.

These are about seven or eight feet deep, three or four feet wide at the mouth, and gradually decrease till they are only about a foot wide at the bottom.