Trans-Siberian Railway of travelling in the comfort of "the tsar's train" across the unspoiled wilderness of Siberia. The tsar's train was designed and built in St. Petersburg to serve as the main mobile office of the tsar and his staff for travelling across Russia. On 9 March 1891, the Russian government issued an imperial rescript in which it announced its intention to construct a railway across Siberia. Tsarevich Nicholas (later Tsar Nicholas II) inaugurated the construction of the railway in Vladivostok on 19 May that year. The construction of the Trans-Siberian Railway was overseen by Sergei Witte, who was then finance minister.
West Siberian taiga Siberian taiga ecoregion, which is colder and more rugged in terrain. The southern edge of the region lies north of the belt of temperate forests and forest-steppe that runs along the Trans-Siberian railway. Because the West Siberian ecoregion is thus outside of the normal agricultural and developed strip of southern Russia, it is sparsely populated, although the city of Yekaterinburg is at the extreme southwest corner of the region. The city of Surgut is the largest city in the interior (with just over 300,000 inhabitants). To the north is the tundra of the Yamal-Gydan tundra ecoregion (covering the Ob River