One-line sky or single-line sky refers to the landform of a narrow passage between huge rocks, where the sky looks like a single line. It is a word often used in China and the Chinese cultural sphere.

One-line sky is found in the following areas:

• Huangshan, Anhui Province
• Wuyi Mountains, Fujian Province
• Shoushan, Kaohsiung, Taiwan

See also

• Slot canyon

References