- Toutle (Wikivoyage)
Toutle is a small town in Washington state, near the west entrance of Mount St. Helens. It offers amenities for visitors to the park.
- Fluorine (Wikipedia)
Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light inert gases. It is highly toxic.