Official Name:上关长城3段
ShangGuanChangCheng3Duan
Our Name: /
Other Name: /
Period:明 / Ming Dynasty 1368~1644
Location: 青海省,西宁市,大通回族土族自治县,起点：桥头镇上关村村北0.5千米的小石山山腰止点：桥头镇上关村村西北0.7千米的小石山腰 / QingHaiSheng,XiNingShi,DaTongHuiZuTuZuZiZhiXian,QiDianQiaoTouZhenShangGuanCunCunBei05QianMiDeXiaoShiShanShanYaoZhiDianQiaoTouZhenShangGuanCunCunXiBei07QianMiDeXiaoShiShanYao
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Details:长城类别：墙体 起点经纬高度：东经：101° 41′ 北纬：36° 55′ 海拔：2533 终点经纬高度：东经：101° 41′ 北纬：36° 55′ 海拔：2504 墙体走向：此段长城东起桥头镇上关村村北约0.5千米的小石山山腰上关长城2段止点GPS0134，沿小石山山脊呈东高西低之势地形延伸，西至小石山山腰上关长城4段起点GPS0136止，地势落差较大，整体呈东北至西南走向。 墙体类别：山险 结构特点及构筑方式：此段长城所在的小石山山脊的外侧是呈70-80度陡峭的山体，山势挺拔，其山脊高于地面几十米，不易攀爬逾越，以此作为天然的屏障，达到军事防御的目的。 现状：此段长城属山险，是利用小石山石灰岩的山体作为天然的屏障，达到军事防御目的。
Type:山险 Precipitous mountain areas
Protection Level:无 　
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National ID:630121382106170019
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Caption:上关长城3段 Photo Time:2008-04-09 10:14:16 Photo Contributor:青海省文物局 [Open in New Window]

Caption:上关长城3段 Photo Time:2008-04-09 10:20:56 Photo Contributor:青海省文物局 [Open in New Window]

Caption:上关长城3段 Photo Time:2008-04-09 10:35:40 Photo Contributor:青海省文物局 [Open in New Window]

Caption:上关长城3段 Photo Time:2008-04-09 10:40:08 Photo Contributor:青海省文物局 [Open in New Window]

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