The Reykjanes peninsula represents the Mid Atlantic Ridge where it becomes Iceland proper. Farthest west it is not all that different from a true ocean floor ridge with many fractures and small rift valleys. Farther up on land its character changes and there are more and larger volcanic features.
The picture shows the typical and rather bleak scenery on Reykjanes, which is the first view of Iceland most visitors have, for the international airport is situated here. Here we see the long gentle slope of a shield volcano running to the left, while on the right are the more rugged outlines of subglacially erupted móberg mountains.