What is a hanging valley?
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A characteristic feature of glaciated mountain topography, a hanging valley is a tributary to a main valley which has been deeply scoured by glacial ice, leaving the tributary valley “hanging” above the main valley.
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- A hanging valley can be formed when the lower valley has a greater rate of erosion.
- This can be cause by 2 glacier flows, one feeding the other.
- This may also be caused by a greater flow of water in the lower valley or soft rock layers that erode more quickly.
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