Search

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.

Navigation map of the Riau Roadstead (off west coast of Bintan, Riau Archipelago): a body of water sheltered from tides/currents, for ships to anchor. Bathymetry (sea depth) and various obstructions and landmarks (hills, buildings, trees) are shown.

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.

A map to aid in the navigation of the rivers leading to Saigon (Ho Chi Minh City, Vietnam). Details include bathymetry (water depth), currents, and a side view (or ‘elevation’) of hills to use as a landmark. Tides are described in written remarks.

Map focusing on the passage between Penang Island and the mainland, with shoals and reefs marked and described, and bathymetry (sea depth) shown. There are anchor points at George Town harbour, and landmarks—hills, trees, a fort—to aid navigation.

Map focusing on the passage between Penang Island and the mainland, with shoals and reefs marked and described, and bathymetry (sea depth) shown. There are anchor points at George Town harbour, and landmarks—hills, trees, a fort—to aid navigation.