The course runs around the Brooks Farm and Bell Isle Farm, a bit of the Viking Coastal Trail and a tiny bit of very quiet country lanes.
The 50 mile distance is 8 x 6.25 miles loops = 50 Miles
You can view the route on MapMyRun here
The total elevation gain is about 180' per loop, about 1500' for the 50 miles.
Photos from the Route (Taken July 2016)