Ramsey Island地形图
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关于这张地图
名称：Ramsey Island地形图、海拔、地势。
地点：Ramsey Island, Louisa County, Iowa, United States (40.94253 -91.42570 41.58253 -90.78570)
平均海拔：203 米
最低海拔：158 米
最高海拔：257 米
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Mississippi River
United States > Iowa > Louisa County > New Boston
The uppermost lock and dam on the Upper Mississippi River is the Upper St. Anthony Falls Lock and Dam in Minneapolis. Above the dam, the river's elevation is 799 feet (244 m). Below the dam, the river's elevation is 750 feet (230 m). This 49-foot (15 m) drop is the largest of all the Mississippi River locks…
平均海拔：169 米