芒果视频下载

天(tian)(tian)(tian)門(men)(men)(men)洞(dong)是世界海拔(ba)最高(gao)的(de)天(tian)(tian)(tian)然穿(chuan)山溶洞(dong)，三國(guo)吳(wu)永安六年（公元263年），嵩梁山峭壁轟然洞(dong)開，玄朗如門(men)(men)(men)，吳(wu)王視(shi)為吉祥，亦由此改稱天(tian)(tian)(tian)門(men)(men)(men)山，下(xia)置(zhi)天(tian)(tian)(tian)門(men)(men)(men)郡(jun)。天(tian)(tian)(tian)門(men)(men)(men)洞(dong)南北對穿(chuan)，門(men)(men)(men)高(gao)131.5米(mi)(mi)，寬57米(mi)(mi)，深60米(mi)(mi)，拔(ba)地依天(tian)(tian)(tian)，宛(wan)若一道(dao)通天(tian)(tian)(tian)的(de)門(men)(men)(men)戶(hu)。

天(tian)(tian)門山(shan)海拔1518.6米，山(shan)頂面積2平方公(gong)里。主峰東面絕壁有一巨型溶洞(dong)，南北(bei)貫通透(tou)明如(ru)(ru)門，謂之——天(tian)(tian)門洞(dong)，天(tian)(tian)門山(shan)由此而(er)得名(ming)。天(tian)(tian)門山(shan)東嶺(ling)筆架山(shan)，西扼七(qi)星(xing)山(shan)。十六峰環列左右(you)，綿延數十里，如(ru)(ru)一道天(tian)(tian)然屏障(zhang)。

天(tian)(tian)門(men)(men)奇景，古人有贊(zan)：永定勝(sheng)狀，在(zai)天(tian)(tian)門(men)(men)山(shan)一山(shan)。故今人稱天(tian)(tian)門(men)(men)山(shan)為武陵之魂。天(tian)(tian)門(men)(men)山(shan)下，有澧水發育(yu)，切開(kai)山(shan)下谷(gu)地，使(shi)高山(shan)與(yu)谷(gu)地拉開(kai)極(ji)大高差，10公(gong)里之內，差高1300多米，造就(jiu)天(tian)(tian)門(men)(men)山(shan)孤峰(feng)高聳、臨空獨(du)尊的雄偉氣勢。