Lava flows

At Porto Moniz, on the north coast of Madeira, and at Gorgulho (‘weevil’), near Funchal, there are lava flows of very curious appearance. The Porto Moniz flows, a drawing of which appears in Charles Lyell’s Elements of Geology, look particularly recent. One of them forms a mass bristling with jagged points that extends beyond the coastline. The Gorgulho lavas lie on the shore, close to the spot where a small fort once stood, and contain various hollows in which seawater collects.