A new, comprehensive course map is available through this website.
The course map includes the routes for the marathon and ultramarathon, the exchange zones for the relay, all water stops for marathon and relay, some key mileage markers, traffic control points, labels on important geographic/topographic features, etc.
You can find the map by hovering your mouse over the "Course" link in the header, then clicking on either the marathon course information link or the ultramarathon course information link.
The file is in JPEG format and is about 3 Megabytes in size. The native size of the document is 11"x17". We needed to create a document that large in order to fit the necessary information on the map and still keep everything legible.
We'd be interested in your feedback.