Commarin, Bourgogne-Franche-Comté, France
12.4 miles (19.9 km) · 1,022 ft elevation gain · Loop · trail · Route
Boucle des Trois Châteaux is a 12.4-mile loop route in Commarin, Bourgogne-Franche-Comté, France, gaining 1,022 feet of elevation. The route follows a valley-shaped elevation profile. The terrain breaks into 4 distinct sections including 1 significant climb. The longest climb covers 1.6 miles gaining 542 feet at an average 6.0% grade. Approximately 87% of the route is runnable at a steady effort. The route opens with a climb and finishes with a gradual climb.
| Distance | 12.4 mi (19.9 km) |
| Elevation gain | 1,022 ft (312 m) |
| Average gain | 83 ft per mile (16 m per km) |
| Longest climb | 1.4 mi, 542 ft of gain |
| Steepest climb grade | 22.6% |
| Runnable | 87% of the route |
| Climbs / descents | 1 climbs, 1 descents |
| Profile shape | Down, then up |
| Difficulty score | 5 of 100 |
| Surface | trail |
| Route shape | Loop |
| Type | Route |
| Grade band | Share of route |
|---|---|
| Flat | 64% |
| Mild uphill | 6% |
| Moderate uphill | 7% |
| Steep uphill | 4% |
| Mild downhill | 8% |
| Moderate downhill | 9% |
| Steep downhill | 2% |
Boucle des Trois Châteaux has 1,022 ft (312 m) of elevation gain over 12.4 miles (19.9 km). That averages 83 ft of gain per mile.
The difficulty score for Boucle des Trois Châteaux is 5 of 100. That is harder than 43.2% of routes at a similar distance. About 87% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.
The longest climb on Boucle des Trois Châteaux runs 1.4 miles (2.2 km) and gains 542 ft (165 m). The steepest climb grade on the route is 22.6%.
Preview this trail in 3D flyover, view the elevation profile, and explore the segment breakdown.
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