The Vepor Belt is a zone South of the belt of core mountains. The dividing line is called the Čertovica line. A characteristic feature of the Vepor belt is medium Alpine regional metamorphism. The largest area of this zone is formed by the Veporic unit. Crystalline basement rock is most abundant in this area, and the largest granitic pluton in the Western Carpathians is present here. It was formed during the Hercynian orogeny. Mesozoic sedimentary cover is preserved only locally. The Veporic unit was the root area of the Krížna nappe (Fatric) that was formerly situated in the inverted Zliechov Basin on the northern rim of the Veporic, close to the Tatric. Inversion of the basin took place in the Upper Cretaceous and was accompanied by intrusion of a small body of granite. In addition to nappe outliers of the Choč nappe (Hronic) and part of the Krížna nappe (Fatric), there is also a large body of Muráň nappe (Silicic unit). The Veporic is partially thrusted over the Tatric and lies under the Gemeric unit. The nappe stack of the Veporic and Gemeric later collapsed and evolved in the Veporic metamorphic core complex. The Vepor Belt forms the Eastern part of the Nízke Tatry Mts. (Kráľovohoľské Tatry), Vepor Mts., Kozie chrbty Mts., southern portion of the Branisko Mts. and Čierna hora Mts.. On the South it is divided from the Slovak Ore Mountains by the Lubeník-Margecany Line that is a gently dipping thrust fault.