Detailed chart of the approaches to St Petersburg

Detailed chart of the approaches to St Petersburg, published two weeks before the British declared war on Russia, as the Crimean War.

Although the main focus of the British participation was in the Crimea, a fleet was also sent to the Baltic to harass St Petersburg, then the imperial capital city. Although it successfully blockaded all the Russian ports, keeping the Russian Baltic Fleet at its moorings, its attempts to capture any land base were ineffectual.