laurentian mountains

20 LETTERS · STARTS WITH L

laurentian mountains is a valid 20-letter word worth 21 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1A1U1R1E1N1T1I1A1N1M3O1U1N1T1A1I1N1S1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does laurentian mountains mean?