Yukon-Koyukuk Basin  search
BTUnited States
 .Alaska
 ..Yukon-Koyukuk Basin
UFKoyukuk Basin
 Yukon-Koyukuk Province
RTSouthwestern Alaska
 Southern Alaska
 Northern Alaska
 Kaltag Fault
 East-Central Alaska
 West-Central Alaska
 Yukon River
SNW Alaska. Extends from the Yukon Delta to the Brooks Range. Wedge-shaped expanse of Jurassic and Cretaceous sedimentary and igneous rocks. Indexed with Northern Alaska, West-Central Alaska, East-Central and/or Southern Alaska as applicable. Added to Thesa