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