Board Thread:Suggestions forum/@comment-28852094-20160720050444/@comment-25959378-20160721043026

This is ripped straight from the LOTR Wiki (which list Mumakil as 40 to 50 feet):

Physical descriptionEdit
Mûmakil resemble elephants, except that they are larger and have six tusks instead of two. Two are on the bottom jaw, two larger tusks are where an elephant's would be, and there were two smaller tusks above those.

No complete Mûmak skeleton has ever been found, but accounts found in both the Red Book of Westmarch and in other scrolls suggest that they stood between fifty and one hundred feet (15 to 30 meters for metric users) tall (although official top trumps suggest a height of around 35 feet or 10 meters), with four huge tusks and two smaller ones to each side of the mouth. When charging into battle, they bellowed and screeched at great volume, and a thunderous din that shook the very earth preceded the advent of their coming and crushing all in their path. Some Mûmakil also seemed to have lighter grey skin than others.