![](https://historicalmaps.yale-nus.edu.sg/rails/active_storage/representations/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBaUlFIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--bd6d1d7782ca31952f35f26ad01a07aac0f31dfd/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCam9MY21WemFYcGxTU0lNTkRBd2VETXdNQVk2QmtWVSIsImV4cCI6bnVsbCwicHVyIjoidmFyaWF0aW9uIn19--8e68de2000a6e968bae6c9034cc043e081a6a0fb/nlb-050000017.jpeg)
Oostkust Sumatra. Schetskaart der Siak Rivier van het Eiland Tengah tot Siak
1894
Indonesia
This late 19th century large-scale (1:30,000) map show just a section of the Siak River, in the Riau province of Sumatra. Bathymetry (water depth) is shown in figures to aid navigation, with various landmarks noted along the river’s banks.