Is there a way to see or edit Reminder locations in iCal?
Is there a way to see or edit the locations associated with iCloud Reminders within iCal?


In a word, "no".

Even in Mountain Lion Developer Preview with access to a standalone Reminders app (Reminders, or "todos" were removed from iCal - hooray!) there is no ability to see these from OS X.  Note, all this could change, ML is Beta after all.  But certainly in Lion and iCal, it's a straight no, and always will be.