IODP SEDIS - Thesaurus -

Windermere System
BT	Chronostratigraphic Units
	.Precambrian
	..Proterozoic
	...Windermere System
RT	Idaho
	Montana
	Washington
	British Columbia
SN	Unconformably overlays the Purcell System in W and N Purcell Mountains of SE British Columbia. Also may occur as Windermere Group or Windermere Supergroup in NW United States. Also search Windermere Group NOT England to exclude that Silurian formation.