Category:Water supply infrastructure in Kaliningrad Oblast
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Federal subjects of the Russian Federation:
Republics:Krais: Krasnoyarsk ·
Oblasts: Arkhangelsk · Bryansk · Kaliningrad · Kaluga · Leningrad · Moscow · Sverdlovsk · Tula · Tyumen · Yaroslavl
Federal cities: Moscow · Saint Petersburg ·
Autonomous oblast:
Autonomous okrugs:
Subcategories
This category has the following 3 subcategories, out of 3 total.