Parco Regionale della Grigna Settentrionale, Lombardia, Italia
20.5 miles (33.1 km) · 10,650 ft elevation gain · Loop · trail · Race
| Distance | 20.5 mi (33.1 km) |
| Elevation gain | 10,650 ft (3,246 m) |
| Average gain | 518 ft per mile (98 m per km) |
| Longest climb | 4.0 mi, 2,367 ft of gain |
| Steepest climb grade | 72% |
| Runnable | 27% of the route |
| Climbs / descents | 2 climbs, 3 descents |
| Profile shape | Up, then down |
| Difficulty score | 14 of 100 |
| Surface | trail |
| Route shape | Loop |
| Type | Race |
| Grade band | Share of route |
|---|---|
| Flat | 15% |
| Mild uphill | 4% |
| Moderate uphill | 7% |
| Steep uphill | 31% |
| Mild downhill | 3% |
| Moderate downhill | 5% |
| Steep downhill | 35% |
Grigne Skymarathon has 10,650 ft (3,246 m) of elevation gain over 20.5 miles (33.1 km). That averages 518 ft of gain per mile.
The difficulty score for Grigne Skymarathon is 14 of 100. That is harder than 85% of routes at a similar distance. About 27% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.
The longest climb on Grigne Skymarathon runs 4.0 miles (6.5 km) and gains 2,367 ft (721 m). The steepest climb grade on the route is 72%.
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