福建土楼世遗知识 (Things to know about Fujian Tulou, a World Heritage Site) (in Chinese)
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A photo of the valley, captioned "土楼长城" ("Tulou Great Wall") can be seen in Huang 2009, p. 334. The photo shows the section of the valley starting from around 24°34′28″N116°59′40″E / 24.57444°N 116.99444°E / 24.57444; 116.99444 (Shijia village, 实佳村), and stretching toward the north-northwest for several kilometers. Huang, Hanmin (黄汉民) (2009), 福建土楼-中国传统民居的瑰宝 (Fujian Tulou: a jewel of China's traditional residential architecture), 三联书店 (Sanlian Books), ISBN9787108031754 (revised edition)
(Nomination 2008, p. 4). The nomination restricts the term tulou to these 3 provinces. Quote: "In the southeastern Chinese provinces of Fujian, Jiangxi and Guangdong, there exist a lot of buildings with a long history called 'Tulou'." Zheng, Guozhen; He, Jingping; Hu, Daxin; Lin, Yimou; Jian, Weipeng; Chang, Hao (2008), Nomination of Cultural Property for Inscription on the World Heritage List: Fujian Tulou(PDF) (This document is linked from the heritage object's main page. The list of preparers is on p. 332.)
