Hi Jason,
In version 2.0 and above, the /events/ page itself is generated by the following file /views/ecp-page-template.php in the events calendar (the base free version, not pro). However you’ll notice that this file is pretty bare and calls functions from other files. /views/gridview.php generates the calendar view and /views/list.php generates the list view, but again, those files call functions contained within other files in the plugin.
If you let us know more specifically what it is you’re tying to find out, we may be able to give you more details about it 🙂
Cheers