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GT 100 Roads 2026
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WIDTH
under 3 m
3–5.5 m
5.5–13 m
13–19.5 m
over 19.5 m
Narrow → Wide (width)
© OpenStreetMap contributors / others
CRUISE
蒜山高原線
Chugoku · Okayama
No.35450
GT SCORE
56
GT SCORE
56
An absolute rating of the road itself
LENGTH
11.9
km
ELEVATION RANGE
133
m
CORNERS PER KM
1.7
/km
SIGNALS PER KM
0.0
/km
LENGTH
11.9
km
ELEVATION RANGE
133
m
CORNERS PER KM
1.7
/km
SIGNALS PER KM
0.0
/km
TYPICAL WIDTH
5.5–13 m
STOPS
4
ROAD WIDTH BREAKDOWN
Narrow
5.5–13 m: 100%
Wide
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STOPS ALONG THIS ROAD
P
駐車場1-蒜山高原線
5 m
P
駐車場2-蒜山高原線
40 m
道
道の駅蒜山高原
59 m
P
駐車場6-蒜山大山スカイライン
173 m