Irkutsk Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Irkutsk Russian Federation
BTAsia
 .Irkutsk Russian Federation
NTBiryusa River
 Bodaibo Russian Federation
 Chuya Russian Federation
 Mama Russian Federation
 Slyudyanka Russian Federation
 Ulkan Russian Federation
 Ust-Kut Russian Federation
RTAngara-Lena Basin
 Lena Basin
 Baikal Mountains
 Baikal region
 Lake Baikal
 Baikal rift zone
 Vitim River
 Oka River
 Iya River
 Patom Plateau
 Uda River
SNOblast W and N of Lake Baikal. Before 1993, Irkutsk Russian Republic was also used. This term has multiple hierarchies.