For those experts that know what to do with these...

XML: http://www.google.com/calendar/feeds/sennahills.com_js0rfjhrmscsqsv98bfmqvj4og%40group.calendar.google.com/public/basic

ICAL: http://www.google.com/calendar/ical/sennahills.com_js0rfjhrmscsqsv98bfmqvj4og%40group.calendar.google.com/public/basic.ics

HTML: http://www.google.com/calendar/hosted/sennahills.com/embed?src=sennahills.com_js0rfjhrmscsqsv98bfmqvj4og%40group.calendar.google.com&ctz=America/Chicago