What is "watercourses"

Usage examples of "watercourses".

This overmountain procession came chiefly up the watercourses of the south and middle States.

But the paths across it--those connecting the streams that flow in opposite directions from the continental watersheds--are like isthmian paths between great oceans-- great dry oceans with watercourses through them.

However, Cyrus Harding did not remember having seen, at the time of his excursion to the crater, any other watercourses but the Red Creek and the Mercy.

It had followed, on one side, the valley of Red Creek, and on the other that of Falls River, evaporating those watercourses in its passage.

What a sad and fearful sight, and how painful to the colonists, who, from a fertile domain covered with forests, irrigated by watercourses, and enriched by the produce of their toils, found themselves, as it were, transported to a desolate rock, upon which, but for their reserves of provisions, they could not even gather the means of subsistence!