river-trough

Updated: August 21, 2026

After two hours' walking, we came suddenly upon the Morro or cliff of the river-trough, now about 1,000 feet deep. Here the prospect again shifted; the black gate opened, showing the lowest of the long line of rapids called Borongwa ya Vivi, with the natives and their canoes, like flies upon bits of straw.

Sir Richard Francis Burton - Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2