From 1904 onwards the French undertook works on the Niger between Bamako - whence there is railway communication with the Senegal - and Ansongo with a view to deepening the channel and removing obstructions to navigation.
2
From Kurussa the Niger is navigable at high water all the way to Bamako in Upper Senegal, whence there is communication by rail and river with St Louis and Timbuktu.
3
He descended the river some distance, and on his return journey went up stream as far as Bamako.
4
Its principal affluent, the Baule (Red river), and its headstreams rise farther east on the northern slopes of the hills which above Bamako shut in the Niger.
5
Seven or eight miles below Bamako the Sotuba rocks mark the end of what may be considered the upper river.