The Sub Carpathians
The Sub Carpathians of Curvature, Ciucaș, or Curvature Carpathians, are located between Trotus Valley and Slanicul Buzaului Valley in Romania. They are a range of high hills, with knolls and parallel ridges, which separate two geologic depressions.
The Sub Carpathians are one of the three traditional classifications of the Eastern Carpathians in Romania:
They include:
Geologically, based on the divisions of the Carpathians, all of the Sub Carpathians are part of the Outer Eastern Carpathians.