Azerbaijan has all kinds of mud volcano, making it possible to study various aspects of mud eruptions. There are active, dormant, buried and subsea volcanoes in Azerbaijan, as well as those on islands and spewing oil. For instance, there are many subsea mud volcanoes around the Baku archipelago. 

Lok-Batan Mud Cone is a mud volcano located in Absheron peninsula in the Absheron district of Azerbaijan. Lok-Batan mud cone is located at 40° 20' 50" northern latitude and 49° 45' 55" eastern longitude near Lok-Batan Settlement of Garadagh district of Baku City, the capital of the Republic of Azerbaijan. "Lok-Batan" mud cone is protected by the State as a monument of a nature of the special significance pursuant to the Decree of the Government of Azerbaijan Republic No. 167 of March 16, 1982. This mud cone has most numerous (about 20) on quantity of eruptions. It is located at 130 meters above the sea level. Unlike many other mud cones there are no any mud gryphons in Lok-Batan. There are present Upper and Mid Pliocene deposits of Absheron, Aghdjagil Stages and rich stratum in the geological structure of this mud cone. These deposits go to the surface as a ridge around of the mud cone. Structurally it is on the top of the transverse anticline. The first eruption of the mud cone was in 1864. Lok-Batan mud cone is one of unique representative of 220 mad cones located on the territory of Azerbaijan and of 600 mud cones on Earth.

Lok-Batan means "place where the camel got stuck". It may well have been named after the twin humps at the crest of the hill, which give it a camel-like shape. Lok-Batan is located 15 kilometres south of Baku. This mud volcano erupted in 1977 and again, even more spectacularly on October 10, 2001, when it produced large flames many tens of meters high. The last eruption of volcano was in May, 2017.

Lok-Batan Mud Cone was inscribed on the UNESCO World Heritage Tentative List in Need of Urgent Safeguarding on September 30, 1998.