Tibet, map showing explorations by C.H.D. Ryder R. E., D. S. O. and Captains H. Wood, R.E., & H.M. Coweie. R.E. of the Tibet Frontier Commision, 1904 : reduced from the sheets of the Survey of India.
From "The Geographical Journal." vol. 26. no. 4. A copy of this map and companion volume is available from RECAP. Call number: G7 .J6874 vol 26, July to December 1905. Relief shown by hachures and spot heights. Red line on map shows the expedition route. Includes inset chart of triangulation and inset location map. Companion volume is available from RECAP - Call number:G7 .J6874 A printed copy of this map is in volume.