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PublicSouth Dakota

Boles Canyon Road

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Created by

2012legazz

Distance

46.3 mi

Duration

2h 23m

Checkpoints

6

Created

JUL 6, 2026

The road

Boles Canyon Road in South Dakota is graded at 443 corners, about 9.6 for every mile you drive. 37 of them are genuinely tight, and the sharpest turns in at a 10 m radius. The longest straight runs 3.5 miles, so there is room to breathe between the technical sections.

Graded corners
443
Tight (1–2)
37
Tightest radius
10 m
Corners per mile
9.6

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.

Checkpoints

6

  1. #01

    Roby Canyon Road

  2. #02

    Boles Canyon Road

  3. #03

    21981 Potato Springs Lane

  4. #04

    21961 Potato Springs Lane

  5. #05

    US Route 85

  6. #06

    Boles Canyon Road

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