Global Volcanism Program | Image GVP-11734
The rugged summit of Pico Ruvio forms the 1862-m high point of the island of Madeira and is a popular destination for hikers. This eroded scoria-cone complex was erupted during a late stage of Pliocene-to-Pleistocene rift activity along the axis of the Madeira rift. Dense swarms of dikes, some of which are visible in this image, are oriented E-W, parallel to the orientation of the rift.
Photo by Paul Bernhardt.