Science / Geology / Hanging Valley: A tributary to a U-shaped glacial valley which, instead of entering the valley at the same level as the main stream, enters at a higher elevation, frequently as a waterfall. These different stream levels are a result of the rapid downcutting of the glacier being much faster than the slower downcutting of the tributary stream.
Valley Adverb Synonyms: glen, dale, dell, vale, dingle, hollow, coomb or coombe or combe or comb, Welsh cirque or corrie or cwm, strath
Science / Geology / V-Shaped Valley: A valley with a narrow bottom and a cross section shaped like the letter 'V'. Valleys of this shape are almost always cut by stream erosion. MORE
Science / Geology / U-Shaped Valley: A deep valley with a flat floor and very steep walls. Shaped in cross-section like the letter 'U'. Valleys with this geometry are frequently cut by a glacier. MORE