Greater Göygöl area is often split into 19 lakes, 8 of which fall into large lakes category, Maralgol, Zelilgöl, Qaragöl among them. It is situated at 1,556 meters above the sea level. The complete length reaches 6,460 meters. The depth of the lake is 93 meters. Due to pureness of the water, one can see underwater life clearly 8–10 meters below the surface. The lake fauna is very rich. The Göygöl Trout has evolved from the river trout since the natural creation of the lake.