If it were not for Mike W., I wouldn't know about it either. As for the books, I have a couple of them and they are not current. I think they are from like the early 2000's or so. If you do find them, check the date of issue.
Mike's map is the best I have personally seen. There is also a CD (maybe DVD?) of RR maps which is also a bit out of date as well and not as good as Mike's map.