Irkutsk Basin  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Irkutsk Basin
BTAsia
 .Irkutsk Basin
UFCheremkhovo Basin
 Cheremkovo coal basin
 Irkutsk Amphitheater
RTcoal fields
SNCoal Basin extending 150 miles NW along Trans-Siberian RR from Lake Baikal. This term has multiple hierarchies.