Mount Crumpit is a fictional mountain created by Dr. Seuss in his beloved children's book, "How the Grinch Stole Christmas!" It is located just north of the town of Whoville, where the cheerful Whos live. The mountain is characterized by its steep slopes and snowy peaks, providing a perfect vantage point for the Grinch to observe the Whos' holiday celebrations. The Grinch, a green creature known for his disdain for Christmas, resides in a cave on Mount Crumpit. From this height, he devises a plan to steal Christmas from the Whos. Ultimately, the story highlights themes of redemption and the true spirit of the holiday season.