Borsod-Abaúj-Zemplén is the name of an administrative county (Hungarian: megye) in north-eastern Hungary (commonly called "Northern Hungary"), on the border with Slovakia. It shares borders with the Hungarian counties Nógrád, Heves, Hajdú-Bihar and Szabolcs-Szatmár-Bereg. The capital of Borsod-Abaúj-Zemplén county is Miskolc. Of the seven statistical regions of Hungary it belongs to the region Northern Hungary. Borsod-Abaúj-Zemplén is the second largest county of Hungary both by area (after Bács-Kiskun) and by population (after Pest County).
Borsod-Abaúj-Zemplén is one of the most geographically diverse areas of Hungary. It lies where the Northern Mountains meet the Great Hungarian Plain, thus the northern parts of the county are mountainous – with some of the highest peaks and deepest caves in the country –, the southern parts are flat.
Borsod-Abaúj-Zemplén County was part of the Programme adjacent area with full participationof the Hungary-Slovakia-Romania-Ukraine ENPI CBC Programme 2007-2013. For CBC projects implemented by the lead partners and partners from Borsod-Abaúj-Zemplén please check the KEEP database.