The Mieminger Mountains lie in a particularly interesting region from a geological standpoint. Between the peaks of the Sonnenspitze, Wetterstein and Daniel, three geological units meet that, during the course of mountain building, were piled on top of one another as nappes and today are adjacent to one together. The Mieminger Mountains are located in one of these stacks: the Inn Valley or Inntal Stack. Almost all the rocks in the Mieminger range were formed at one stage on the seabed and consist of limestone and its derivative, dolomite. In addition there are sandstones, argillites, hornfels, carbonate breccias (rauhwackes) and volcanic tuffs.