Chota Nagpur Plateau has the remains of an old fort belonging to the Nagavanshis. The Chhota Nagpur Plateau is a continental plateau—an extensive area of land thrust above the general land. The plateau has been formed by continental uplift from forces acting deep inside the earth. The Gondwana substrates attest to the plateau's ancient origin. It is part of the Deccan Plate, which broke free from the southern continent during the Cretaceous to embark on a 50-million-year journey that was violently interrupted by the northern Eurasian continent. The northeastern part of the Deccan Plateau, where this ecoregion sits, was the first area of
Ngaoundere Plateau flows, maars, and tuff cones. One lava flow in this area has been dated to 0.9 million years ago. Some of the volcanoes may be from the Holocene period. Ngaoundere Plateau The Ngaoundéré Plateau is a highland area in the Adamawa Region of Cameroon. It contains Tchabal Nganha, a large volcano, and many other recent volcanic structures. The plateau is between the forested south and savannah north of Cameroon. Ngaoundéré, the capital of the Adamawa region is located on the plateau. It lies over the Ngaoundere fault zone, which was reactivated in the Cretaceous. The Ngaoundere fault belongs the Central