A side valley and a tributary valley are valleys whose brook or river flows into a greater one.
Upstream, the valleys can be classified in an increasing order which is equivalent to the usual orographic order: the tributaries are ordered from those nearest to the source of the river to those nearest to the mouth of the river. A confluence is where two or more tributaries or rivers flow together.
Read more about Side Valley: Orographic Order (e.g. River Humber), Basic Facts of Geomorphology, Shape of Side Valleys, Miscellaneous
Famous quotes containing the words side and/or valley:
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And when you think he’s half asleep, he’s always wide awake.”
—T.S. (Thomas Stearns)
“Down in the valley,
Valley so low,
Hang your head over,
Hear the train blow.”
—Unknown. Down in the Valley (l. 1–4)