The Quill /ˈkwɪl/ is a dormant stratovolcano located on the island of Sint Eustatius in the Caribbean Netherlands. The summit elevation is 601m above sea-level. It is also the second highest mountain in the Netherlands.
The name 'Quill' originates from the Dutch term kuil meaning 'pit' or 'hole', which was used originally with reference to the volcanic crater. The Quill was designated as a national park by the government of the Netherlands Antilles in 1998. It is administered by the Sint Eustatius National Parks Foundation, STENAPA, which maintains a number of trails for hikers.
The Quill formed between 22,000 and 32,000 years before present to the southeast of Sint Eustatius (Statia) in the West Indies. Pyroclastic flows during the initial eruption joined the Quill with what is now the rest of Sint Eustatius. The Quill has been active since its birth; the last known eruption, as determined by carbon dating, occurred between 1,755 and 1,635 years before present. Since volcanic eruptions from the Quill have included pyroclastic flows, and because groundwater heating indicates that the Quill is only dormant, the volcano must be regarded as potentially dangerous.