Red Bird Canyon Road

Red Bird Canyon Road in Custer, South Dakota is graded at 69 corners, about 9.5 for every mile you drive. 9 of them are genuinely tight (13% of the road), and the sharpest turns in at a 13 m radius. There is no real rest on it — the longest straight is only 330 m before the next corner.

Graded corners

69

Tight (1–2)

9

Tightest radius

13 m

Corners per mile

9.5

Corners are graded from the route’s own geometry on the rally 1–6 scale, where 1 is a hairpin. Road & Rally calls them out as you drive.