A landslide-created lake called Karagol is situated 25–27 kilometres from Artvin’s Borcka district. The lake region is inside the boundaries of the Borcka Lake Nature Park, which was created on August 14, 2002. The lake receives 10,000 visitors on average each year.
Between Karasalvar Hill (2.333 m) and Verketil Hill (2.429 m) in the south, there is a mountainous region with peaks where Karagöl is located. Karagöl is a landslide lake fed by Heba Stream and Savgule Stream, which forms the beginning of Klaskuri Stream. When the Savgule Valley was covered in landslide debris removed from the slope, the lake began to appear. Two lakes, one large and the other smaller, were created by the water pooling in the Savgule Stream-created landslide portion.
The tiny lake has a circumference of around 7 acres and is shaped like a circle. The big lake, on the other hand, is 50 acres in size and has a triangle-like shape. The two lakes progressively become joined to one another. The huge lake is 1-1.5 metres deeper than the small lake in level. The lake is said to have created in the 1800s, but this information is uncertain.
The lake’s depth, which is affected by the same stream that carries its alluviums, reduced through time from 30 metres to 8 metres, and its 56-decare land area to 50 decares. The alluvium that filled the lake was drained as part of the work done in collaboration with the State Hydraulic Works of the Rize 12th Regional Directorate of Nature Conservation and National Parks, and walking trails supported by wood were inserted into the lake.
It is a landslide lake, however Karagol, which is split into two halves, is not a landslide set lake. It was known that the landslide debris was where the majority of the lake’s water was gathered. It was claimed that behind the obstruction caused by such a sizable landslide, a lake with a little area as Karagöl could not form. Additionally, it was said that the lake is made up of water that collects in the bipartite region between the roughness of the floating debris. Landslide material is present between the two lakes as well. The likelihood of Karagöl being on the wreckage is increased by the shallowness of the lake and the steepness of the slope in front of the Great Wall of China.