Maps this year are courtesy of ridewithgps.com.
This is the link for you to join our event. It will give you the premium features.
You can download the updated routes/cue sheets, print them, download the map tiles and routes for your phone, navigate with the phone with turn-by-turn, and upload to their bike computers.
Here's an instructional video.
If you are unable to set up ridewithgps.com, you can download and print PDF maps for every ride.