For both races you have views of the Canyon, waterfalls and two states!!! These views will blow your mind and you will forget you are running. 

The 50k :
31.5 miles of trail 2 miles of paved road within the park- only 3,000 ft of elevation gain for the 50k.

Half Marathon
12.5 miles of trail 2 miles of road within the park. 2,100 ft of gain and 2,100 ft of loss for entire course.