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Topographical map of mainland Southeast Asia. Mountains are represented by hachures—short lines/dashes that give a sense of the shape and steepness of terrain—and settlements, roads and rivers are marked.

A map surveying coal fields close to the Chindwin River in Upper Burma (Myanmar). Mountains are shown by using hachures: short lines/dashes that give a sense of the shape and steepness of terrain. Survey stations are marked with their height.

Map of the border region between northeast Burma (Myanmar) and China's Yunnan Province, spread over two sheets. The Burma side is more detailed, featuring mountains, rivers and settlements, as well as roads and trade routes.

A map of the route of a British Army expedition near the border of Upper Burma with China. High points are marked with their heights so they can be used for triangulation. Settlements, rivers, trade routes and footpaths are also shown.