source / spring nacimiento: The source of the Tagus is in the Sierra de Albarracín.

headwater cabecera: The region is an important wildlife habitat and the headwater for the region's river.

(river) bank orilla: She was enjoying her walk down the quiet country lane towards the river bank. ^ There is intensive cultivation along the banks of the river.

riverside orilla, ribera: the riverside warehouses of the London docklands

backwater remanso: It was a peaceful and unspoilt backwater.

riverbed / bed lecho, cauce: There was a dried-up riverbed not far away, and along its banks were the skeletons of trees long dead.

sandbank banco de arena: The boat ran aground on a sandbank.

sand bar / sandbar barrera de arena, banco de arena: The Kumbukan river rises with the first rains and breaks down the sand bar between itself and the sea.

course curso: We went down the course of the river.

(river) basin cuenca: This year's winter storms dumped more rain south of the river basin. ^ the Mississippi river basin

rapids (plural) rápidos shoot the rapids bajar los rápidos: There were some rapids on a stretch of the river. ^ Come and shoot the rapids in a virtual prehistoric world.

torrent /ˈtɒrənt/ torrente: Again, a torrent of water had flooded the valley. ^ a raging/rushing torrent

waterfall (also falls plural) cascada, catarata, cataratas: the Niagara Falls

meander /miˈændə/ 1. meandro 2. serpentear: The river meanders through the city.

ford /fɔːd/ vado: They didn't know the location of the ford.