Kolymskaya expedition He was appointed in 1820 to command the Kolymskaya expedition to explore the Russian polar seas. Sailing from
St. Petersburg, he arrived at
Nizhnekolymsk on 2 November 1820, and early in 1821 journeyed to Cape Shelagskiy on sledges drawn by dogs. He sailed afterward up
Kolyma River, advancing about 125 miles into the interior, through territory inhabited by the
Yakuts. On 10 March 1822, he resumed his journey northward, and traveled 46 days on the ice, reaching 72° 2' north latitude. He left Nizhnekolymsk on 1 November 1823, and returned to St. Petersburg on 15 August 1824. Prior to his departure for Russia's American colonies, he was married to Elisabeth Theodora Natalie Karoline de Rossillon, daughter of Baron Wilhelm de Rossillon. He traveled to his post early in 1829, by way of
Siberia and
Kamchatka. After thoroughly reforming the administration, he introduced the cultivation of the potato, opened and regulated the working of several mines, and urged upon the home government the organization of a fur company. He promoted investment, and sent out missionaries. He began a survey of the country, opened roads, built bridges and government buildings. He made geographical and ethnographical observations, which he embodied in a memoir to the navy department. Recalled in 1834, he returned by way of
Mexico and the United States, where he visited several cities. In 1854 he re-entered active service and was made chief director of the hydrographical department of the navy ==Writings==