The mountains are bordered by Zvolen in the west, Košice in the east, the rivers Hron and Hornád in the north, and the Juhoslovenská kotlina and Košice Basin (Košická kotlina) in the south. The region includes the Domica Cave (jaskyňa Domica), one of the biggest caves in Europe, Zádiel canyon and Krásna Hôrka Castle.
Geomorphologically, the Slovak Ore Mountains are grouped within the Inner Western Carpathians. The mountains do not have a central ridge - they consist of several independent sections, geomorphological regions:
^Lonely Planet Czech & Slovak Republics Lisa Dunford, Brett Atkinson, Neil Wilson - 2007 - Page 423 "Do all this and more, among the fanciful underworld formations of the Slovak Karst (Slovensky kras). This region of limestone canyons and caves lies at the eastern end of Slovenské rudohorie (the Slovak Ore Mountains), a major range that reaches the border with Hungary. Its most spectacular landscapes are within the 440-sq-km Slovak Karst National Park, promoted to a Unesco World Heritage site in 1995. The region's highlights include Domica Cave (Domica jaskyňa), said to be one of the biggest caves in the world, Zadielska canyon near the Hungarian border, and the dramatic Krásna Hôrka Castle."
^Mazúr, E., Lukniš M., 1986: Geomorfologické členenie SSR a ČSSR. Časť Slovensko. Slovenská kartografia, Bratislava