Official Name:
东大山山险DongDaShanShanXianOur Name:
烟洞沟山 / YanDongGouShan
Other Name:
/
Period:汉
/ Han Dynasty 206 B.C.~316A.D.
Location: 甘肃省,张掖市,甘州区,起点:东乐乡西屯村以北约18千米处山顶止点:平山湖蒙古族乡政府所在地西南约30千米处人峻口峡谷西岸山顶 / GanSuSheng,ZhangYeShi,GanZhouQu,QiDianDongLeXiangXiTunCunYiBeiYue18QianMiChuShanDingZhiDianPingShanHuMengGuZuXiangZhengFuSuoZaiDiXiNanYue30QianMiChuRenJunKouXiaGuXiAnShanDing
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Details:长城类别:墙体
起点经纬高度:东经:100° 51′ 北纬:38° 59′ 海拔:3400
终点经纬高度:东经:100° 32′ 北纬:39° 05′ 海拔:1612
墙体走向:
墙体类别:山险
结构特点及构筑方式:东大山系龙首山山脉,南隔走廊平原与祁连山相望,是走廊平原与蒙古高原的过渡地带,一般海拔1600米-3700米之间,相对高度800米-1000米。山体呈带状分布,属剥蚀中山,岩石裸露,山脊及阳坡物理风化强烈、岩石碎屑广布。此段山险起自第0001点,止于点第0004点,全长29320米,海拔在3700米-1612米之间,山势陡峻起伏,山顶尖峭,实地垂直高度约在100米-300米之间,峰峦连绵,沟壑纵横。山体北坡较为舒缓,有草甸草尝灌木、针叶林木覆盖,南坡较为陡峭,汉代充分利用其险势作为天然防御屏障。在止点处地表采集到汉代素面灰陶片,故第0004点又是一个标本采集点。
现状:
Type:山险 Precipitous mountain areas
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