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Map of the Kai Islands, in the Banda Sea, designed for navigation: it features bathymetry (sea depth), reefs and shoals. Obstructions in the water are marked ‘kr’ (coral), ‘m’ (mud), ‘s’ (shells), ‘st’ (stones), and ‘z’ (sand).

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.

This map uses hachures—short lines/dashes that give a sense of the shape and steepness of terrain—to show Java’s mountains. There are also two side views (elevations) of the mountains showing the heights of various road routes across the island.

This map uses hachures—short lines/dashes that give a sense of the shape and steepness of terrain—to show Java’s mountains. There are also two side views (elevations) of the mountains showing the heights of various road routes across the island.