under-features

Updated: September 23, 2025

The eastern ends of these main ridges are perhaps 1,000 yards from the river, and in this intervening space there are several rocky under-features and knolls. The Kerreri Hills, the spaces between them, and the smaller features are covered with rough boulders and angular stones of volcanic origin, which render the movements of horses and camels difficult and painful.

Winston Churchill - The River War : An Account of the Reconquest of the Sudan