Windermere group
For the UK supergroup, see Windermere Supergroup.
In North America, the Windermere Group of rocks is a Neoproterozoic suite of clastics and volcanics up to 8,000 meters thick in western Montana, Idaho, and British Columbia.
In North America, the Windermere Group of rocks is a Neoproterozoic suite of clastics and volcanics up to 8,000 meters thick in western Montana, Idaho, and British Columbia.