Military and History Museum of Fortifications

The defensive structures, built in the rocks of Medvezhegorsk, have been preserved very well. However, the Finns did not limit themselves to just these structures; a magnificent defensive line was created that stretches for 40 kilometers.

Any person who comes to these places for the first time is struck by the defense site, because it is difficult to imagine how much human and material forces had to be applied here. Apparently, Mannerheim was planning to stay here for a long time. Many of its buildings (extensive tunnel barracks, rather powerful reinforced concrete objects with long trenches completely cut into the rock) give the impression of very expensive constructions, at least for wartime. The labor of the prisoners of war was also used.

An interesting fact is the construction of a large number of these tunnel barracks, with a capacity for 100-200 infantry men. The tunnel barracks, cut into solid rock at a depth of 10-15 meters, provided an excellent protection garrison. Now inside we see only powerful cuts in the rock, with impressive sizes.

The floors and ceilings were additionally concreted. Bathrooms and air ducts were provided. The tunnel barracks were also equipped with heating, water tanks and other necessary equipment.

After the war, the residents of Medgora said that the Finns built 240 rooms underground. From that place there is an exit to Onega lake. During the retreat, all engineering equipment was removed and the Finns managed to blow up some things.

Since the length of some mazes is large, after the war for safety’s sake some of it was filled in. Now local historians with their assistants are beginning to dig. In general, the Karkhumaki castle is the original, thoughtful and strong defensive complex that can arouse great interest in every person who cares about the military history of his country.

From May to September, tours of the fortifications are held daily. Groups are formed by prior arrangement.