Lexicon of Cave and Karst Terminology

NATURAL BRIDGE

natural bridge: translation

1.A residual portion of the roof of a subterranean stream which has not collapsed and is found bridging a valley. Normally a surface feature, but may be used to describe a similar occurrence in a cave system [20].
2.A rock bridge spanning a ravine and not yet eroded away [10].
Synonyms:(French.)pontnaturel; (German.)Naturbrücke,Felsbrücke; (Greek.)physikigefyra; (Italian.)pontenaturale; (Russian.)estestvennijmost; (Spanish.)puentenatural; (Turkish.)doalköprü; (Yugoslavian.)prirodnimost,naravnimost.
See alsonatural arch.

  1. natural bridgeестественный мост природная арка...Англо-русский геологический словарь