creek, riverbank, lake, waterway, riverbed, riverside, estuary, tributary, headwater, rivier, more...

desert, ridge, peak, dune, plateau

Amazon, Mississippi, Nile, Yangtze, Missouri, Congo, Hudson, Colorado, more...

great, little, small, lower, upper, largest, main, broad, mighty, wide, big

what styx circles,   seine tributary,   flowing water,   "mississippi ",   irish sea feeder,   baltic sea feeder,   caspian sea feeder,   powell or light,   rapid stream,   source of water,   orinoco feeder