Heavy Metal Media, LLC, formerly Metal Mammoth, Inc., and before that, Heavy Metal Communications, is an American comic book and magazine publisher based in Easthampton, Massachusetts. It was founded in 1977 by Leonard Mogel. The company is best known for its long-running fiction and fantasy comics magazine Heavy Metal, which is itself an American version of the French science-fantasy magazine Métal Hurlant, first published in 1975.