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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.

This map of Billiton (Belitung, Indonesia) features details of the island’s mining operations: blue borders divide the island into five mining districts, within which mines are represented by red crosses with an identifying number.

Different levels of government monopolies are indicated on this map of the Dutch East Indies by the use of areas of colour (opium trade) and hash marks (salt trade). The inset map of Java is divided into residencies.

A topographical and geological map of southern Sumatra, over four sheets. Areas of igneous and sedimentary rock, coal, fossils, petroleum, active volcanoes and hot springs are marked, along with mountains, rivers and marshland, roads and settlements.

A geological map showing the types of rock and minerals found in the Oembilien coalfield, in the Padang Highlands on Sumatra’s west coast. Coal, rocks and fossils are marked, and the heights of mountains are given.

A geological map, spread over eight sheets, showing the types of rock and minerals found in the Oembilien coalfield, in the Padang Highlands on Sumatra’s west coast. There are also additional geological profiles.

This geological map of the district of Toboali (Bangka Island, east of Sumatra) uses colours to depict types of rocks, soils and minerals. Tin mining areas are also highlighted.

A geological map showing the types of rock and minerals found in Blinjoe district on the island of Bangka, off the east coast of Sumatra. Deposits of iron, quartz and tin are marked, and coral is shown at the coast.

A geological map of western Borneo made by a mine engineer, showing the types of soil, coal, clay, and rock (limestone, sandstone, granite, basalt), as well as gold, diamonds, tin, copper and iron found along the rivers.

Map of the Dutch colonial administrative region of the island of Billiton (Belitung). The population is listed by race, and tin production by year. (From ‘Algemeene Atlas van Nederlandsche Indie [General Atlas of the Dutch East Indies]’.)