‘One-Line Sky’ of Granite
Reference work entry
Synonym: ‘Line-like sky’ of granite
The flow of water cuts and erodes weak zones along vertical joints and faults and forms elongated depressions with vertical walls. Only a narrow portion of the sky can be seen from the bottoms of these depressions, so these features are called ‘one-line sky’. The southern trail on Tiandoufeng (Heaven Blade Peak) in Huangshan and the Fairy Bridge at Xihai Gorge lie across the valley floor with a ‘one-line sky’ (Fig. 4).
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