|Elevation||2,125 m (6,972 ft)|
|Prominence||1,200 m (3,900 ft)|
|Location||Austria / Slovenia|
Peca (Slovene) or Petzen (German) is the highest mountain of the Eastern Karavanke range, the second highest mountain of the Northern Karavanke, and the most eastern two-thousand-metre (over 6,562 ft) mountain of Slovenia. It is a mighty mountain with a characteristic shape of a tableland with rocky peaks protruding from it. The mountain borders the Mežica Valley and the Topla Valley to the south and east, and the Jaun Valley to the north, and is separated by a narrow valley of the Bela creek from Hochobir. Two thirds of the mountain lie in Austria, and one third in Slovenia. The mountain reaches the highest altitude at the mountain crest of Kordež Head (Slovene: Kordeževa Glava, Kordeschkopf, 2,125 metres or 6,972 feet). The border runs across it.
The mountain is built of Triassic Wetterstein limestone and dolomite. In the past, the lead and zinc ores were mined in Peca, the shafts belonging to the Topla and Mežica mines. In addition to the ore, several rare minerals were discovered in the Peca underground, such as wulfenite and calcite. From the global standpoint, the Topla mine is it a rare proof of the sediment creation of lead-zinc ore deposits in supratidal zones. The underground of Peca may be visited with a mountain bike.
The slopes at the Slovenian side are in large part forested, whereas its higher parts are home to a variety of Alpine flora, including the flowers Primula minima, Ranunculus alpestris, Cortusa matthioli, Campanula zoysii, and the grass Helictotrichon petzense. A ski slope is situated at the Austrian side.
A mountain hostel has been built at Mala Peca (1,665 metres or 5,463 feet) in 1928, burnt in World War II, and rebuilt in 1957. Since 1936, a chapel of Sts. Cyril and Methodius with a bell (since 1999) stands next to it. The beginning of an abandoned pit, named Matjaž Cave after the King Matjaž, is situated in the vicinity. It is a historical monument. Inside it, there is a bronze statue of the sleeping king. The statue was designed in 1958 by the sculptor and mountaineer Marjan Keršič, put to bronze by the sculptor France Rotar, and placed in the cave in 1962.
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- Tomšič, Žare (2007). "Mountains and Peaks". Petzenland.si. RRA Koroška [Regional Development Agency of Carinthia]. Retrieved 12 March 2012.
- Dobnik, Jože (2006, 2011). "Pot kurirjev in vezistov NOB" [Path of Couriers and Operators of the National Liberation War]. Pespoti.si. Planinska zveza Slovenije [Mountaineering Association of Slovenia]. Geodetska uprava Republike Slovenije [Geodetic Administration of the Republic of Slovenia]. Društvo Domicilnega odbora kurirjev in vezistov NOV Slovenije [Society of the Domicile Board of the Couriers and Operators of the National Liberation War of Slovenia]. Točka Dom na Peci [The Veliki Snežnik Point]. Retrieved 12 March 2012.
- Rikanovič, Rada. Brenčič, Miha (2003). "Comparison of the CORINE Land Cover data and Agricultural Land Use Monitoring Data as a basis for groundwater vulnerability mapping in the Peca border region". Geologija: razprave in poročila [Geological Transactions and Reports] (Slovensko geološko društvo [Geological Society of Slovenia]) 46 (2): 440.
- Bole, Bernarda (2002). "Karbonatne kamnine Pece" [Carbonate Rocks of Mt. Peca]. Geologija: razprave in poročila [Geological Transactions and Reports] (in Slovene): 59–69. ISSN 0016-7789. COBISS 887125.
- Javornik, Marjan (1999). "Topla". In Voglar, Dušan. Dermastja, Alenka. Enciklopedija Slovenije [Encyclopedia of Slovenia] (in Slovene) 13. p. 288. ISBN 9788611153643.
- "Minerali iz podzemlja Pece" [Minerals from the Peca Underground] (in Slovene). Prirodoslovni muzej Slovenije [Natural History Museum of Slovenia]. Retrieved 12 March 2012.
- "Geosites and Geopart Localities in the Geopark area". Application for Membership in the Global Geoparks Network. Zavod RS za varstvo narave [Institute of the Republic of Slovenia for the Protection of Nature]. p. 22.
- "Cycling in the Mine". Podzemlje Pece: Tourist Mine and Museum. Retrieved 12 March 2012.
- "Peca: Mala Peca". Zaplana.net. Retrieved 12 March 2012.
- "Krkine planinske poti: Peca" [Krka's Mountain Paths]. Krka.si. Retrieved 12 March 2012.
- "Peca - Matjaževa jama" [Peca: Matjaž Cave]. Registry of Immovable Cultural Heritage (in Slovene). Ministry of Culture, Slovenia. Retrieved 12 March 2012.
- "Zgodovina" [History]. Pdmezica.si. Planinsko društvo Mežica [Mežica Mountaineering Club]. 1958 - 1969. Retrieved 12 March 2012.
- Peca/Petzen (Kordež Head). VR panorama (surround photography). Hribi.net. Retrieved 12 March 2012.