BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
PRODID:-//NPS iCal//Presidio of San Francisco//EN
X-WR-CALNAME:Presidio of San Francisco Events
X-WR-CALDESC:Upcoming events at Presidio of San Francisco
REFRESH-INTERVAL;VALUE=DURATION:PT12H
X-PUBLISHED-TTL:PT12H
END:VCALENDAR