Cartographic Details: Scale approximately 1:20,000 (E 91°06'27"--E 91°09'47"/N 29°40'13"--N 29°38'18"). Relief shown by hachures. Likely reproduced from: Lhasa and its mysteries : with a record of the expedition of 1903-1904 by L. A. Waddell. 18 x 30 centimeters Scale approximately 1:20,000 Ames Library of South Asia Maps