There are a good number of cities referred to in Y'hoshua, of course, and a sizable percentage (I'm guesstimating about 5%) of them start with ה־ (most famously הָעַי, I think).
- What determines which ones do?
- Does it mean "the"? (Note that the ה־ combines with the sh'va prefixes, as in "לָעַי" (Y'hoshua 8:2), which makes it seem like it means "the".)