Vologda Governorate
In 1924, the uyezds of Northern Dvina Governorate were abolished in favor of the new divisions, the districts (raions). Vologda Governorate retained the uyezd division till 1929. On July 15, 1929 the uyezds in Vologda governorate were abolished, and the areas which previously belonged to Vologda and Northern Dvina governorates were merged into Northern Krai. The krai consisted of the Komi-Zyryan Autonomous Oblast, a number of islands in the Arctic Ocean, as well as five administrative districts ("okrugs"),