On the Kerch Peninsula, near the village of Vulchanova, ten kilometres South of the village of Lenin, near the Kerch – Feodosia you can see jau-Tepe - one of a kind mud volcano. Jau-Tepe from the Crimean Tatar dialect translates as "the devil mountain" (or "dangerous mud flows"). Another interpretation of the name suggests N. N. The Klepinin – "expiring mud".

This area is characterized by steppe vegetation. High hill (about 60 m) with steep slopes and ravines, crossing his foot, drew the attention. This mud volcano, famous jau-Tepe. Dirt, many times resulting from its top, covered the slopes of the hill. South of the volcano can be seen sulphur spring with a major influx of water.

Mud products jau-Tepe is very significant, their size is about 1, 5 sq km, a volume of 55 million cubic meters. Mud volcano is located on the dome Volkanovski anticline, which is located almost in the horizontal direction.

Major hill was created in the 17th century, according to P..Pallas, after another eruption. Nestled on the hillside settlement was completely destroyed mud flow coming from the top. In the 19th century jau-Tepe "slept". Violent activity began in the first decades of the 20th century, underwent a series of violent eruptions. So, in February 1909 at the top of the volcano formed a large crack. A month later the eruption, which was seen P..Dvoychenko. According his description, "first swollen up on top of fathom, then she went down for a few fathoms below its normal position, the result is cracked, and then broke an outer shaft, and mud (5 yards wide) slowly crept down the slope. The next day there was liquid mud weight with the smell of hydrogen sulfide, there was a thread a length of 160 yards wide and 20-30 thickness from 1 to 3 fathoms. During the third day flowed slowly thick mud weight, but she soon stopped. Approximately 8 million. pounds was the weight of all the mud stream".

Jau-Tepe entire second half of the 20th century was a dormant volcano. The dirt from the hills gradually began to erode, grow brown, it cracks. The content of this mud-rich sandstones, limestones and calcite crystals.

In the bowels of the Kerch Peninsula lie Maikop clays. Petroleum potential of these clays has become the cause of numerous eruptions jau-Tepe.