My strong preference is to have the descriptions on the map page. One page while trying to set out the course is easy to deal with. Two pages are not as easy to handle repeatedly.
If the split locations are described properly, anyone can find them. Race directors lose maps and paperwork. If the map has split descriptions, anyone can download the map fro the USATF site, and have all the information they need to set out the course properly. I dislike maps that do not show splits, and do not have a split-description page with them. To me, that's an incomplete product.
Sorry Paul, but I feel that we should put on the course map all the information required to properly set out the course for a race. A runner that wants to preview the course, or do his training runs on it, should have the split descriptions. If we only did the paperwork for the race director, we wouldn't have a site where anyone can download the course information.