e/Mountain Lake cluster

Information
has gloss	eng: The Mountain Lake cluster is a group of two diatremes in Northern Alberta, Canada. It formed during a period of kimberlite volcanism about 77 million years ago. Other nearby kimberlite clusters include the Birch Mountains kimberlite field and the Buffalo Head Hills kimberlite field.
lexicalization	eng: Mountain Lake cluster
instance of	c/Cretaceous volcanoes