武隆縣位于重慶市東南部，這里又名天坑三硚，是全國(guó)罕見的地質(zhì)奇觀生態(tài)型旅游區(qū)，屬典型的喀斯特地貌。景區(qū)以天龍橋、青龍橋、黑龍橋三座氣勢(shì)磅礴的石拱橋稱奇于世，屬亞洲最大的天生橋群。圖片來源：ICphoto
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