The Savage Sword of Conan #78 comic book from Marvel Comics Group
I always liked how the cover really did a good job of showing the yeti being partially covered by the snowstorm. 
 It really makes it easy to believe that maybe in such isolated parts of the world, a yeti like creature could hide. 
Much more plausible than a giant dinosaur living in a lake.

       

This is a scan of an old comic book. This item is not for sale. But you can find it on ebay.
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