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A navigation map of the northern tip of Sumatra, featuring bathymetry (sea depth), reefs, shoals, and side views of landmark mountains (elevations). Lighthouses are highlighted in red and yellow, with lines to indicate the limits of their range.

Map of Groot-Atjeh (Aceh, Sumatra) divided into administrative districts. Mountains, forests, villages, railways, roads and rivers are marked. There are inset maps of Poeloe Bras (Breueh Island), and showing distances between larger settlements.