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Closed city

Tryokhgorny

Closed city · Russia

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In short

For visitors: permit required.

  • Boundary area — 163 km²
  • Checked against the act on 20 October 2026

Who may enter, and with what

Rules by group of people, as the source states them, with dates. We give no assessments of our own.

  • Citizens of Russia — permit required. Entry to the closed town is by pass only. For Russian citizens, entry is authorised by the town administration (or the facility head for the facility's needs) in agreement with the FSB.Issued by: Head of the closed town's local government (for the facility's needs — head of the facility), in agreement with the FSBExceptions: The pass procedure, including application deadlines, is set by the access-control instructions of each closed townRegulations on the special regime of Rosatom closed towns (Government Decree No. 693 of 11.06.1996), paras. 18, 24, 25 · as of 27 March 2026 · checked 20 October 2026
  • Foreign nationals — permit required. Foreigners may enter a closed town only by decision of the responsible agency, agreed with the FSB.Issued by: The agency in charge of the closed town's facility (Rosatom, Defence Ministry, Roscosmos), in agreement with the FSBExceptions: Close relatives of permanent residents — under the general procedure for citizens (Decree No. 693, para. 26)
    Original wording

    по решению руководителя (заместителя руководителя) Государственной корпорации по атомной энергии "Росатом"

    Government Decree No. 693 (Rosatom), para. 26; Government Decree No. 655 (Defence Ministry), para. 25; Government Decree No. 2169 (Roscosmos), section V · as of 27 March 2026 · checked 20 October 2026

Legal basis

Open the text

Questions

Permits and restricted zones — FAQ

Do you need a permit: Tryokhgorny?
For visitors: permit required. Foreigners may enter a closed town only by decision of the responsible agency, agreed with the FSB.
Where do I get the permit?
Issued by: The agency in charge of the closed town's facility (Rosatom, Defence Ministry, Roscosmos), in agreement with the FSB. The link to the official application page is in the rule above.
Will the planner see this zone on my route?
Yes: the zone has a boundary, and the trip plan will show a line if the route or an overnight stop falls inside.

Other zones: Russia

AlexandrovskAreas of Chelyabinsk Oblast — restricted for foreignersAreas of Kaliningrad Oblast — restricted for foreignersAreas of Nizhny Novgorod Oblast — restricted for foreignersAreas of Sverdlovsk Oblast — restricted for foreignersArkhangelsk/Komi areas and southern Novaya Zemlya — restricted for foreignersBorder zone: Altai KraiBorder zone: Altai RepublicBorder zone: Amur OblastBorder zone: Arkhangelsk OblastBorder zone: Astrakhan OblastBorder zone: Belgorod OblastBorder zone: Bryansk OblastBorder zone: BuryatiaBorder zone: ChechnyaBorder zone: Chelyabinsk OblastBorder zone: ChukotkaBorder zone: CrimeaBorder zone: DagestanBorder zone: IngushetiaBorder zone: Jewish Autonomous OblastBorder zone: Kabardino-BalkariaBorder zone: Kaliningrad OblastBorder zone: Kalmykia
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Zone boundaries built from © OpenStreetMap contributors and national acts.