Hochobir, Mountain summit in Carinthia, Austria

Hochobir is the 2139 m summit of the Obir massif, the highest mountain group of the Northern Karawanken in Carinthia, Austria. The massif also includes the Kuhberg (2026 m), Kleinobir (1948 m), Vielspitz (1624 m) and Altberg (1552 m). The summit lies within Austrian territory near Gallizien, Eisenkappel-Vellach and Zell, and a 7 m high, 3 m wide metal summit cross erected in 1972 stands on top.

Lead mining at the Obir is documented from 1696 and continued until the mid-20th century, leaving numerous adits and spoil heaps. Meteorological observations near the summit began in 1846 at the Hochobir mine, and from 1878 to 1880 the Hochobir weather station was built as one of the first in the Alps, together with the Rainer-Schutzhaus. In 1891 the Hannwarte was added on the summit; both buildings were destroyed in World War II.

The name Obir is recorded as Obier in 1637 and derives from the Slovene ober, meaning giant. The Slovene name Ojstrc means pointed peak and was once Germanised as Oisterz. The massif gives its name to Obirstraße in Klagenfurt, Völkermarkt and Eberndorf, and to Obirska ulica in Ljubljana.

A toll road leads up to the Eisenkappler Hütte, where you can park before starting the marked trail to the top. The upper section of the path gets steeper and requires solid footwear, especially when the ground is wet.

The summit cross is a metal structure 7 m tall and 3 m wide, weighing 500 kg, erected in 1972 on the initiative of the Landjugend Gallizien. The mountain also gives its name to Alyssum ovirense, the Obir stonecress, and to Obirska ulica in Ljubljana.