Mill Mountain is the opener. The grade is steady, somewhere around 4 to 5% average, and the road is shaded. It's the kind of climb that feels manageable because your legs are fresh. The danger is that it lulls you into thinking the course is hard but handleable. Roanoke Mountain will correct that impression.
This is the big one. 780 feet of gain in approximately two miles, with switchbacks that wind through the Blue Ridge Parkway. Each switchback reveals a new overlook. The views are spectacular. The grade is relentless. The descent off the back is steeper than the ascent, and if you bomb it, your quads will be destroyed by Peakwood.
Peakwood is the most psychologically brutal climb on the course. It is shorter than both Mill Mountain and Roanoke Mountain, but it hits steeper grades and it arrives at mile 19. Race reports consistently describe it as the section where even experienced marathoners surrender to walking. That's fine. The race culture here is not about fighting the mountain. It's about getting up it.
The pattern: Mill Mountain is the warm-up. Roanoke Mountain is the test. Peakwood is the gut check. Each one is harder than the last, not because the terrain gets more extreme, but because you get more tired.