It forms a geographical unity with the Mátra-Slanec Area, the adjacent parts of Slovakia.

Erosion here was more severe: these are mere hills and comprise the lowest part of the North Hungarian Mountains.

Kékes, the country's highest peak at 1014 meters, is located in the next range, Mátra.

The Bükk is a limestone range; it has the highest average height in Hungary.

The Zemplén Mountains are again of volcanic origin; the soil's high-quality favors viticulture.