For those running a spring marathon, we have a 14 miler on the schedule (although this course looks short, it usually seems to come in close to 14). We also have a 5.4 miler for those in maintenance mode or starting back up, as well as a 6 and 8 miler.
5.4 miler: http://www.mapmyrun.com/routes/view/605986144
6.6 miler: http://www.mapmyrun.com/routes/view/605985624
8.25 miler: http://www.mapmyrun.com/routes/view/614210704
14 miler: http://www.mapmyrun.com/routes/view/610028162