Bonny Doon Road
A coastal climb from Highway 1 toward Bonny Doon, connecting open slopes and wooded sections.
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Road shape
- Length
- 6.7 mi
- Bends
- 21
- Switchbacks
- 1
- Bends per mile
- 3.1
- Turning per mile
- 305°
- Curviest rank
- 67of 85
Measured from the OpenStreetMap centreline at a 20 m sampling step — road shape only, not a safety or speed judgement. How bends are counted.
Elevation
- Total climb
- 1,812ft
- Climb per mile
- 270ft
- Highest point
- 1,799ft
- Steepest grade
- 10.6%
Sampled every 100 m from USGS 10 m elevation data, a public-domain federal dataset. Total climb counts vertical change in both directions, so it does not depend on which way you drive. How elevation is measured.
Speed limits
35 mph
Published limits
35 mph in the section north of Pine Flat Road; other sections vary.
County code specifies a section starting 0.9 miles north of Pine Flat Road and continuing 1.7 miles. Other sections not verified.
Posted signs always govern. How speed evidence is handled.
Sources
Difficulty 2/3 (Winding) is our editorial rating of width, bends and sightlines; “Medium speed” describes character, not a target speed. Full method. Identified from:
- Best Biking Roads · Santa Cruz loop ↗
- OpenStreetMap road data ↗ (18 ways in this trace)
Reviewed 2026-09-08. The trace shows selected road sections, not a navigation route.