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On the main map, the volcanic regions of Southeast Asia are labelled, active and extinct volcanos are marked, and the 1815 eruption of Tumbora (Mount Tambora on Sumbawa) is highlighted. Even more details are shown on an inset map of Southeast Asia.

Chart of the Indian Ocean, showing climate and weather-related data, including around the seas and straits of Southeast Asia where trade routes are marked, along with monsoon and typhoon regions, and currents during the different monsoon seasons.

Map of the rivers and river basins of Europe and Asia. In Southeast Asia, the Irawady and Menam Kong basins are shown, with their area in square miles (and their area as a multiple of the size of the Pregel River basin).

Mountain chains are represented by black lines; volcanoes by black dots. Three insets maps: expansion of Reguain—island of Taung-ywa, off the coast of Myanmar—due to volcanic activity; geology of Java (with heights of mountains); volcanoes of Luzon.

On the main map, the volcanic regions of Southeast Asia are labelled, active and extinct volcanos are marked, and the 1815 eruption of Tumbora (Mount Tambora on Sumbawa) is highlighted. Even more details are shown on an inset map of Southeast Asia.

Based on surveys by Sir Stamford Raffles, this German map of Sumatra focuses on the navigation of coasts and straits, with bathymetry (sea depth), anchor points, shoals and reefs marked, including on inset maps of Singapore and the Bangka Strait.

Based on surveys by Sir Stamford Raffles, this German map of Sumatra focuses on the navigation of coasts and straits, with bathymetry (sea depth), anchor points, shoals and reefs marked, including on inset maps of Singapore and the Bangka Strait.

Based on surveys by Sir Stamford Raffles, this German map of Sumatra focuses on the navigation of coasts and straits, with bathymetry (sea depth), anchor points, shoals and reefs marked, including on inset maps of Singapore and the Bangka Strait.

Navigation map of the southern South China Sea, with bathymetry (sea depth), islands, shoals and reefs marked. There are four maritime routes to China marked, with notes on what months or monsoon season to use them. Inset map of Gulf of Thailand.

Navigation map of the southern South China Sea, with bathymetry (sea depth), islands, shoals and reefs marked. There are four maritime routes to China marked, with notes on what months or monsoon season to use them. Inset map of Gulf of Thailand.

A mid-19th century German map of mainland Southeast Asia showing a mixture of ancient kingdoms (e.g. Birma, Siam, Anam) and the colonial possessions of Britain (Malaya, Straits Settlements) and Denmark (Nicobar Islands).

A mid-19th century German map of mainland Southeast Asia showing a mixture of ancient kingdoms (e.g. Birma, Siam, Anam) and the colonial possessions of Britain (Malaya, Straits Settlements) and Denmark (Nicobar Islands).