The High Rhön ( or Hochrhön) is that part of the central Rhön that lies in Hesse, Bavaria, and to a lesser extent in Thuringia; it covers an area of Landscape fact files by the BfN (c.f. section on Natural region division) and is up to and whose highland plateaux with elevations starting at are covered by solid basalt. Its core area in the northeast used to be called the Plattenrhön. The High Rhön is a natural regional major unit in the East Hesse Highlands; see Natural regions.