Search

Navigation map of the Riau Strait between Batam, Bintan and Rempang (Riau Archipelago). Bathymetry (sea depth), lighthouses, bouys, currents and obstructions are marked. There are side views of islands and mountains (elevations) to use as landmarks.

Navigation map of the southern part of the South China Sea, including the straits of Malacca and Singapore, and the Riau Archipelago. Bathymetry (sea depth), lighthouses, shoals and other obstructions are marked, with hills to use as landmarks.

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.

Shipping routes are the focus of this map of the Dutch East Indies, indicated by red lines labelled with the name of the shipping company and the destinations. Parcel shipping routes are also shown. Inset maps feature railway lines too.

Navigation map of the mouths of the Koealoe (Kualu) and Panei (Barumun and Bila) rivers on the east coast of Sumatra. Large sand and mud banks, bathymetry (sea depth), bouys and currents are marked. On land, tall trees are shown to use as landmarks.

The seas of the Dutch East Indies are the focus of this map, with maritime routes, sea temperature, sea depth, currents and monsoons shown. There are graphs of population by ethnicity, agriculture and livestock, trade and shipping, and trade exports.

A hand-drawn map of Lake Toba, northern Sumatra, marked with the route of an eight-day journey around the southern lake area—both on land and by boat—starting and ending in the town of Baligé.

A large-scale map of northern Sumatra, spread over 16 sheets, and divided into administrative regions. The island of Nijas (Nias) is marked with the locations of local tribes, and there is a list of other maps referenced in producing the map.

A large-scale map of northern Sumatra, spread over 16 sheets, and divided into administrative regions. The island of Nijas (Nias) is marked with the locations of local tribes, and there is a list of other maps referenced in producing the map.

Map of the Karimunjawa Islands (Java Sea) marked with the locations of shoals, reefs, anchor points and sea depth (bathymetry) to aid navigation; and with geological sites (recent rock/coral formation, basalt rock, schist rock and quartz).

Three maps of the Caroline Islands. One shows colonised areas in Southeast Asia: Dutch East Indies; British North Borneo, British New Guinea; German New Guinea; Philippines (Spain); Portuguese Timor. The route of the Challenger expedition is marked.

Navigation map of the mouth of the Padang Tikar River, on the west coast of Borneo, featuring bathymetric (water depth) routes. Obstructions are marked with letters: ‘m’ (mud), ‘z’ (sand). Trees, hills and fishermen’s houses are shown as landmarks.