Further info on the "Map of Tanzhou and Hezhou" (<i>Tanhe Biantu</i>) from Luo Hongxian's <i>Enlarged Atlas</i>, Vol. 2, based on the maps first drafted by Zhu Siben. Library of Congress copy of Hu Song's 1558 revision. Discusses the area of the current prefectures of Lanzhou, Linxia, Dingxi, Gannan, Longnan, and Tianshui in southeastern Gansu.
Zhu Siben, redrafted and revised by Luo Hongxian, edited by Hu Song
1558
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