Drainage basin - Wikipedia

Map of Indus River Basin (Background picture adopted from

Powder River Basin - Wikipedia

Chad Basin - Wikipedia

Why does Southern California not have any big rivers like Northern California? Could they tap into the water supply from snow melt or run-off? - Quora

Godavari River - Wikipedia

Wisconsin River - Wikipedia

Drainage basin Mississippi, Mississippi river, Louisiana news

lower sesan 2 Archives - Page 2 of 3 - Mekong Eye

Main stem - Wikipedia