 Since one can only arrive by either air or sea, Norilsk is often thought of as an island entirely surrounded by the Taymyrsky Dolgano-Nenetsky District.However, it is not under the administration of Taymyrsky Dolgano-Nenetsky District.In 2005, the central city of Norilsk merged with its satellite cities or neighborhoods (Talnakh and Kayerkan) as a municipal division.