Mushroom Mesa was a geological formation located in the Dune Sea of Tatooine. Named for the rock for

Mushroom Mesa was a geological formation located in the Dune Sea of Tatooine. Named for the rock formations that resembled large fungi, the Mesa was part of the Boota Eve Classic race circuit. Some superstitious residents of the planet claimed it was created by some unknown powerful beings, as some of the formations resembled humanoid faces.

Source:Star Wars: Episode I The Phantom Menace (1999)

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