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This map of the Burman Empire (Myanmar) features mountains, forests and rivers, as well as borders with Siam (Thailand) and Laos. Text notes how far up rivers boats can reach (‘Boats reach hither from the Sea’), ruby mines and rice fields.

On this map of Sumatra, the west coast mountain ranges contrast with the rivers to the east. An inset map of Singapore focuses on jungles along the coasts, and features bathymetry (sea depth) around the south coast and along the Singapore Strait.