Utah State Route 143

Utah State Route 143 in Parowan, Utah is graded at 150 corners, about 6.3 for every mile you drive. 5 of them are genuinely tight, and the sharpest turns in at a 17 m radius. The longest straight runs 1.0 miles, so there is room to breathe between the technical sections.

Graded corners

150

Tight (1–2)

5

Tightest radius

17 m

Corners per mile

6.3

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.