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  1. A steephead valley, steephead or blind valley is a deep, narrow, flat bottomed valley with an abrupt ending. Such closed valleys may arise in limestone or karst landscapes, where a layer of permeable rock lies above an impermeable substrate such as marl .

  2. A blind valley is a composite surface feature of the karst cycle consisting of a normal river valley in impermeable sediments and its continuation in permeable rocks where the stream (or river and likewise the valley) abruptly ends in a depression or sinkhole.

    • Ivan Gams
  3. Nov 16, 2021 · Learn about karst topography, a type of landscape formed from the dissolution of limestone and other soluble rocks. Find out the characteristics, features and examples of karst landforms, including blind valleys, sinkholes, caves and more.

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  4. Polje is a flat-floored basin with steep walls formed by the coalescence of sinkholes in karst regions. Learn more about polje, its geology, and its contrast with Amazon basin, the largest drainage basin in the world.

    • The Editors of Encyclopaedia Britannica
  5. A blind valley is a type of valley that ends in a steep slope and has a flat bottom. It forms when a subterranean stream erodes a channel and then collapses, creating a surface outlet. Learn more about blind valleys and see some examples from limestone or karst regions.

  6. - A steep head valley, also known as a blind valley, is a deep, narrow valley with a flat bottom that abruptly ends. Closed valleys like these can be found in limestones or Karsi landscapes. - It consists of a typical river valley in impermeable sediments that suddenly ends in DEPRESSION as it continues in permeable rocks.

  7. Nov 19, 2022 · A blind valley is a composite surface feature of the karst cycle consisting of a normal river valley in impermeable sediments and its continuation in permeable rocks where the stream (or river and likewise the valley) abruptly ends in a depression or sinkhole.