Volcanoes on Io

"[...] and it's Io that's got the volcanoes."

- Hermione Granger correcting Ron Weasley's essay about Jupiter's Moons

These unidentified volcanoes were some volcanoes found on Jupiters moon Io. In 1995 Ronald Weasley had to write an Astronomy essay to Professor Arora Sinistra about this.

Appearances

 * Harry Potter and the Order of the Phoenix