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Map of the district of Ruby Mines in northern Burma (Myanmar) featuring the Irrawaddy and Shweli rivers. High points are marked with their heights so they can be used for triangulation. As the name suggests, the district was known for its rubies.

Map of the Katha district, Burma (Myanmar), with locations of gold mines and land allocated for prospecting. High points are marked and linked with lines to create a triangulation network. The Mu Valley State Railway and Mu River are shown.

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 Upper Burma showing the border with Assam (India) and China. The names of indigenous peoples are shown (‘Singphos’), along with the Irrawaddy River, railways and resources (‘Teak Forests’, mines (silver, copper, sulphur, rubies, coal, jade)).

Details of each area’s resources are printed on this map of Sumatra: rattan, coffee, pepper, Chinese cinnamon, tobacco, resins, camphor, cotton, coal, gold, lumber, elephants, horses, as well as the locals’ ethnicity (Malays, Javanese, Acehnese).

The seas of the Dutch East Indies are the focus of this map, with maritime routes, sea temperature, sea depth, currents and monsoons shown. There are graphs of population by ethnicity, agriculture and livestock, trade and shipping, and trade exports.

A large-scale map of northern Sumatra, spread over 16 sheets, and divided into administrative regions. The island of Nijas (Nias) is marked with the locations of local tribes, and there is a list of other maps referenced in producing the map.

A large-scale map of northern Sumatra, spread over 16 sheets, and divided into administrative regions. The island of Nijas (Nias) is marked with the locations of local tribes, and there is a list of other maps referenced in producing the map.

A map of the Malayan states of Pahang and Selangor, showing the rivers, mines (gold, tin, sulphur, shale) and mining companies in the region. There is also a list translating Malay terms used on the map into English.

The Kapoewas (Kapuas) and Melawi rivers converge on this map of the town of Sintang, Borneo. The town lines the river banks, surrounded by forest, wetlands, fields, bamboo, and coconut trees. Arrows on the rivers mark the direction of their flow.

The Kapoewas (Kapuas) and Melawi rivers converge on this map of the town of Sintang, Borneo. The town lines the river banks, and is surrounded by fields, forest and marshland. Arrows on the rivers mark the direction of their flow.

A map of government land around the town of Montrado, Borneo, a gold mining centre in the 19th century, as shown by the number of gold mines (‘goudmijn’) marked. There are also crops—coconut, alang-alang, bamboo—and agricultural and fish ponds.