scoria-covered

Updated: April 30, 2025

As there was now a thick mist and drizzling rain, I did not attempt to go on to the summit that evening, but made two visits to it during my stay, as well as one to the active crater of Gedeh. This is a vast semicircular chasm, bounded by black perpendicular walls of rock, and surrounded by miles of rugged scoria-covered slopes. The crater itself is not very deep.

Alfred Russel Wallace - The Malay Archipelago, the land of the orang-utan and the bird of paradise; a narrative of travel, with studies of man and nature — Volume 1