BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
PRODID:-//NPS iCal//Potomac Heritage National Scenic Trail//EN
X-WR-CALNAME:Potomac Heritage National Scenic Trail Events
X-WR-CALDESC:Upcoming events at Potomac Heritage National Scenic Trail
REFRESH-INTERVAL;VALUE=DURATION:PT12H
X-PUBLISHED-TTL:PT12H
END:VCALENDAR