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沂源县地处山东省中部,淄博市最南端,属沂蒙山区,1944年建县,因沂河发源地得名。她北邻博山区和淄川区,南连蒙阴县,西靠莱芜市,东北与临朐县交界,东南与沂水县接壤,西南与新泰市毗邻,县域总面积1636平方公里。沂源历史悠久,早在四五十万年前的远古时代,就有人类在这块土地上繁衍生息,“沂源猿人”与“北京猿人”同期,是最早的山东人。周朝时先后设艾邑,
Yiyuan County is located in central Shandong Province, the southernmost tip of Zibo City, Yimeng Mountain, County built in 1944, named after the birthplace of Yi River. Her north Boshan District and Zichuan District, south of Mengyin County, west of Laiwu City, northeast and Linqu County border, southeast and Yishui County bordering the southwest and Xintai City, adjacent to the county total area of 1636 square kilometers. Yiyuan has a long history, as early as four or five hundred thousand years ago in ancient times, there are humans in this land to thrive, “Yiyuan ape man ” and “Peking Man ” over the same period, is the earliest Shandong people. Zhou Dynasty has set Ai Yi,