Helvetia Mine Airport

Every figure in the entry, where it came from and when it was last imported. “—” means the sources have no value yet.

Licences

• OurAirports — Airport data from OurAirports (Public Domain)
• timezone-boundary-builder — Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
• NOAA Aviation Weather Center — Weather data: NOAA Aviation Weather Center (Public Domain (US Government))