Het stroomgebied van Bila en Pane: Opgenomen en in kaart gebracht... gedurende de jaren 1876, 1877, 1878, 1882, 1883, 1884
1885
Indonesia
A map of the watershed of the Bila and Pane rivers in northern Sumatra. In addition to many rivers/tributaries, mountains, roads, paths and administrative borders are marked. Side views of mountains (elevations) are shown to use a landmarks.
