As I’m learning to use the calendar plugin I’ve made some changes. There are now 3 calendars based on regions. Northern AZ (Flagstaff, etc), Southern AZ (Tucson, etc) and Central AZ (Greater Phoenix). I think this is enough geographical segmentation. You’ll find those 3 calendars under the “Calendars” menu item. The Central AZ calendar is the default home page. The events themselves are segmented much more, down to the city level. You can refine the calendar by selecting a category from the “Categories” button at the top of each calendar.
I’m looking for volunteers to help contribute to the site! I need admins for Tucson and Flagstaff to create and manage events in those regions. If you love calendars and aggregation, please get in touch: firstname.lastname@example.org!