flume

Plural: flumes

Noun

• a narrow gorge with a stream running through it
• watercourse that consists of an open artificial chute filled with water for power or for carrying logs
• A ravine or gorge, usually one with water running through.
• An open channel or trough used to direct or divert liquids, especially to carry materials (logs, mined material, etc) or people (as a water slide), especially (but not always) one where the walls are raised above the surrounding terrain rather than recessed like a ditch.

Verb

• To transport (logs of wood) by floating them along a water-filled channel or trough.

Synonyms

gulch