Interlake Forma  search
Interlake Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Silurian
 ....Lower Silurian
 .....Llandoverian
 ......Interlake Formation
RTSaskatchewan
 Montana
 North Dakota
 Manitoba
SNLocated in the Williston Basin. Added to Thesaurus in 1989.