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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.

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.

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

Eight navigation maps from around the south coast of Celebes (Sulawesi). Anchorages, roadsteads (bodies of water sheltered from tides/currents), bathymetry (sea depth), shoals and other obstructions are shown, with hills and settlements as landmarks.

From a Dutch geographical society journal, this map of the west coast of Atjeh (Aceh), Sumatra, shows shoals, reefs, bathymetry (sea depth) and anchor points. On land, there are mountains (with heights), rivers, pepper plantations and rice fields.

Map of the Penang Strait, including written instructions on how to navigate the strait. On land, areas of cultivation are marked, with a table listing acreage used for each crop. A boundary with Siam based on an 1831 treaty is also shown.

This detailed map of the Dutch East Indies in the mid-19th century is spread over eight sheets, plus a cover sheet showing the whole area. There are numerous inset maps of islands, bays, cities etc.

An early 19th century map of Singapore’s southern coast and islands, with bathymetry (sea depth), shoals and reefs, anchor points, and notes to aid navigation. The roads and main buildings of Singapore city are also shown.

This map of the Dutch East Indies is spread over eight sheets, with a hand-drawn cover sheet showing the whole area. There are numerous inset maps of islands, bays, cities etc. Two of the inset maps have a replacement map pasted over them.

Map of the Batavia (Jakarta) Bay roadstead, a body of water sheltered from tides/currents, for ships to anchor. The web of lines is a rhumbline network, the numbers indicate sea depth (bathymetry), and there are written notes, all to aid navigation.

Map of the Batavia (Jakarta) Bay roadstead, a body of water sheltered from tides/currents, for ships to anchor. The web of lines is a rhumbline network, the numbers indicate sea depth (bathymetry), and there are written notes, all to aid navigation.

This late 18th century map of Batavia (Jakarta) focusses on the network of canals and rivers surrounding the city, as well as the many fields and plantations, including rice fields (‘Champ de Ris’) and sugarcane (‘Cannes de Sucre’).