The Quill (/kwɪl/ KWIL), also known as Mount Mazinga, is a stratovolcano located on the island of Sint Eustatius in the Caribbean Netherlands.

The Quill formed between 22,000 and 32,000 years ago to the southeast of Sint Eustatius (Statia) in the West Indies.

[3] The crater of The Quill contains a lush rainforest populated by native and introduced tropical trees and plants.

These include elephant ears, tree ferns, begonias, figs, plantains, bananas, bromeliads, trumpet wood, mahogany, seedless breadfruit, Surinam cherry, ginger bush and edible raspberries, as well as at least 17 different kinds of orchids.

Resident animal species include iguanas, anoles, snakes, Caribbean hermit crabs, butterflies, exotic birds, and occasional goats and chickens that have strayed from nearby Oranjestad.