According to Pottermore, J.K. Rowling's Harry Potter website, the Ilvermorny School of Witchcraft and Wizardry stands at the highest peak of Mount Greylock, where it is concealed from non-magic gaze by a variety of powerful enchantments. Mount Greylock is the highest natural point in Massachusetts at 3,489 feet.

Ginny Weasley became a professional Quidditch player for the Holyhead Harpies for several years.