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Navigation map of the waters and straits around some of the islands of the Riau Archipelago, between Sumatra and Batam. Bathymetry (sea depth), current and tide data, reefs, shoals and other obstructions (clay, mud, shells, stones, sand) are marked.

This map of the Madura Strait between Java and Madura is designed to aid navigation: bathymetry (water depth), lighthouses, shoals and reefs, rocks and mud, anchor points, and landmark mountains are all marked. Text describes the tidal conditions.

Map of Ara Bay (east coast of Sumatra). Bathymetry (sea depth), tide data, reefs, shoals and other obstructions (clay, mud, shells, stones, sand) are marked. Underwater trenches are shown, with light buoys, and there is an elevation view of the bay.

Late 19th century map of the Makassar Strait between Borneo and Celebes (Sulawesi), with shoals and reefs, bathymetry (sea depth), shipwrecks and other navigation aids marked. On land, mountains, with their heights, and rivers are shown.

Map focusing on Kota Radja (city of Banda Aceh, Sumatra) during the Aceh War (1873–1904) fought between the Sultanate of Aceh and Dutch colonists. Dutch forts are shown in a zone around the city, and villages are marked in the surrounding country.

Navigation map of the northwest coast of Sumatra. Bathymetry (sea depth), anchor points, shoals and other obstructions (clay, coral, mud, stones, sand) are marked, with hills and settlements to use as landmarks.

Navigation map of the Riau Strait between Batam, Bintan and Rempang (Riau Archipelago). Bathymetry (sea depth), current and tide data, reefs, shoals and other obstructions are marked. A second map features improvements to part of the original map.

Navigation map of the west coast of Celebes (Sulawesi), north of Makassar. Bathymetry (sea depth), shoals and other obstructions are marked, with hills and settlements as landmarks, and elevations (side views of hills) to aid navigation.

On this map of the island of Timor, the Dutch and Portuguese colonial territories are divided by orange borders. The Dutch territory—most of the western half of the island—is divided by green borders into administrative districts.

Four navigation maps of locations around Banka (Bangka) Island, east of Sumatra. Anchor points, lighthouses, bathymetry (sea depth), shoals and other obstructions and landmarks (hills, buildings, trees) are shown.

Map of Groot-Atjeh (Aceh, Sumatra), focusing on the area around the capital Kota Radja (Banda Aceh) and along the coasts. There is a list of telephone connections in the area, and an inset map of the region divided into administrative districts.

The Lesser Sunda Islands are shown spread over these three late 19th century maps. Each island is divided into local administrative districts, with cities, mountains and routes marked. Shoals, lighthouses and anchor points are shown at the coasts.