{{Short description|Mountain range in southern Austria}} {{more citations needed|date=September 2015}} thumb|right|350px|The central part of the Koralpe with the Große Speikkogel, as seen from the west The '''Koralpe''' ({{langx|en|Kor Alps}},<ref>{{cite book|last1=Tolman|first1=Tom|title=Butterflies of Britain and Europe|date=1997|publisher=HarperCollins Publishers|location=London|page=210}}</ref><ref>{{cite book|title=Collier's Encyclopedia, vol. 5: Burnap to charm|date=1986|publisher=Macmillan|location=New York|page=451}}</ref> {{IPA|de|ˈkoːɐ̯ˌalpə, ˈkoːʁˌalpə|lang}}, {{langx|sl|Golica}} or {{lang|sl|Gola planina}}), also referred to as ''Koralm'' ({{IPA|de|ˈkoːɐ̯ˌalm, ˈkoːʁˌalm|lang}}), is a mountain range in southern Austria which separates eastern Carinthia from southern Styria. The southern parts of the range extend into Slovenia.<ref name="Perko">{{cite book |url=https://books.google.com/books?id=WzlI3xXufJEC&pg=PA181 |first=Perko |last=Drago |year=2001 |title=Analiza površja Slovenije s stometrskim Digitalnim modelom reliefa |trans-title=Analysis of the Surface of Slovenia with a 100-meter Digital Model of the Relief |place=Ljubljana |publisher=Založba ZRC |page=181|isbn=9789616182942 }}</ref> Running from north to south, it drains to the river Lavant in the west, and to the river Sulm in the east. Its highest elevation (2,140 meters) is the Große Speikkogel, a popular hiking destination and also a node for military radar airspace surveillance. In the south, in the Slovenian territory, it is contiguous with the Kozjak mountain range.
The Koralpe consists mostly of metamorphic rock, of which some parts are of considerable interest to geologists and to collectors of semi-precious stones. In and around the ''Weinebene'' (also a popular recreational and hiking area) there are pegmatites which contain significant amounts of spodumene, making this area the largest known lithium deposit in Europe. Quartz and feldspar, together with the dense forests, provided the basis for a glass and porcelain industry in earlier times.
The Koralm Railway, opened in 2025 November<ref>{{cite web |url=https://presse-oebb.at/news-full-speed-ahead-for-freight-transport-on-the-new-koralm-railway?id=225480&menueid=29817&l=english | date=2026-02-01 |title=ÖBB Press: Full speed ahead for freight transport on the new Koralm Railway }}</ref>, linking the provincial capitals of Klagenfurt and Graz via the Koralm Tunnel under the Koralpe.
== See also ==
* Handalm
==References== {{Reflist}}
==External links== *{{commons category-inline|Koralpe}} <br /> {{coord|46.800|N|14.983|E|display=title|source:dewiki}} {{Authority control}}
Category:Mountain ranges of Carinthia Category:Mountain ranges of Styria Category:Lavanttal Alps Category:Mountain ranges of Slovenia Category:Mountains of Styria (Slovenia)