You have got to love software and websites,here are the links to the 3 courses I created for Piggy's.
You should be able to download from here.
Hopefully.
I wouldn't worry too much about it since all the loops will be well marked.
Piggy
http://www.mapmyride.com/courses/1347579 for the 20 miles
http://www.mapmyride.com/courses/1347581 for the 40 miles
http://www.mapmyride.com/courses/1347580 for the 60 miles