Ravine
A ravine is a landform. It is narrower than a canyon. Ravines are often made by erosion.
A ravine usually has steep sides, and they are 20-70% in gradient. Ravines sometimes have streams running down the side of them. Ravines are naturally formed.
Ravine Media
Shinturgen pine forest photographed from above. Enbekshikazakh District, Almaty Region, Kazakhstan.
A landslide at Küsnachter Tobel, Switzerland
Kungsklyftan near Fjällbacka (Sweden)
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