Where does Windows Server 2008 store archived event logs?

I'm attempting to use the "Archive the log when full; do not overwrite events" option for an Event Log that fills up quickly. Before I tried that option, I had saved the log manually, and discovered where Windows put the saved log. However, after implementing the automatic option, I can't find the automatically archived logs. They're not with the manually saved logs, and they're not in the LocaleMetaData folder either.

Any idea where the system might have put them?