沂源 Traditional form: 沂源 Pinyin (reading): Yíyuán Definitions: Yiyuan county in Zibo 淄博 ( Zībó), Shandong Characters: 沂 - a river in southeast Shandong 源 - spring; source, root, head; surname Traditional characters: 沂 - a river in southeast Shandong 源 - spring; source, root, head; surname