Subregions- Buryatiya, Russia
 - central Mongolia
 - Chitinskaya Oblast', Russia
 - eastern Kazakhstan
 - eastern Mongolia
 - Irkutskaya Oblast', Russia
 - Kazakhstan-Xinjiang border region
 - Lake Baykal region, Russia
 - Mongolia-China border region
 - northern Xinjiang, China
 - Russia-Kazakhstan border region
 - Russia-Kazakhstan-Xinjiang border region
 - Russia-Mongolia border region
 - southwestern Siberia, Russia
 - western Mongolia

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