Where the banks were steep the river was narrow.
There the water was deep, and large masses of snow and ice were carried along by the strong current.
At the drinking-place the banks were low.
There the river was wider and the current was not so deep and strong.
Small masses of snow and ice were carried along by the current, but the larger masses became lodged on the bed of the stream.
In this way the river was forming a dam.
“All day long the Cave-men watched the river”
All day long the Cave-men watched the river, but at night they went back to the cave.