sheer cliff; folding-screen rock
Refers to a steep, flat rock face resembling a folding screen (屏風). Often used in place names and geological descriptions.
The Byōbu-iwa is a sheer cliff that looks just like a giant folding screen standing upright.
In this area, strangely shaped rocks called 'folding-screen rocks' are scattered about.
Compound of 屏風 (びょうぶ, 'folding screen') and 岩 (いわ, 'rock'), describing a rock formation that resembles a folding screen.