The Seven Summits are composed of each of the highest mountain peaks of each of the seven continents. Different lists include slight variations, but generally the same core is maintained. The seven summits depend on the definition used for a continent - in particular the location of the border of that continent. This results in two points of variation: the first is Mont Blanc versus Mount Elbrus for the continent of Europe; and the second depends on whether one includes all of Oceania or only mainland Australia as the continent, which results in either Puncak Jaya (also known as Carstensz Pyramid) or Mount Kosciuszko, respectively. This also gives rise to another list called Eight Summits including both Puncak Jaya and Mount Kosciuszko and the rest of the six summits in the other continents.