Trans-Siberian Railway because the swampy banks of the Ob River near it were considered inappropriate for a bridge. The railway was laid to the south (instead crossing the Ob at Novonikolaevsk, later renamed Novosibirsk); just a dead-end branch line connected with Tomsk, depriving the city of the prospective transit railway traffic and trade. In March 1890, the Tsarevich (later Tsar Nicholas II) personally inaugurated the construction of the Far East segment of the Trans-Siberian Railway during his stop at Vladivostok, after visiting Japan at the end of his journey around the world. Nicholas II made notes in his diary about his anticipation
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