Koltushskaya Elevation
in
Koltushi
The hills stretch for 12 kilometres from the North to the South and for six kilometres from the east to west. The territory abounds in enclosed lakes.
Defensive installations in Gulf of Finland see detail
After the Crimean War in 1860-1880s 7 forts in the north fairway and 3 forts in the south fairway were built under the direction of E.I. Totlebena. In the end of 19 century there were 17 naval forts.