Leirhnjukur ('Mud Peak') is a 525 m high active volcano, located to the northeast of Lake Myvatn in North Iceland.
Leirhnjukur is part of the Krafla caldera. Its last eruption was from 1975 to 1984. At its foot are mud pots and fumaroles are on the flanks.
Jura gurer ner 2 ovt obhyqref ba gur cngu lbh'er nyzbfg gurer. Oruvaq n ebpx, haqre ebpxf.