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Moderate 🔄 Loop
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Les Plans Loop Hike

Hiking · Created 10 May 2026 · Les Plans, Chamonix-Mont-Blanc, Upper Savoy

Les Plans Loop Hike is a 12.9 km hike loop from Les Plans near Chamonix-Mont-Blanc, with 1144m of climbing and an effort score of 24.

ModerateLoopLes Plans2154m high point63% runnable gradeLow snow exposure

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Distance
12.9 km
Elevation
↗ 1144m
Est. moving time
3h 21m
trail run, 7:00 min/km
Effort
24

Terrain & runnability

63% runnable

This loop packs 89m of climb per kilometre, which makes it a climbing-heavy mountain profile. 63% of measured grade stays in runnable terrain. The hardest kilometre is around km 5, gaining about 245m. Total route distance is 12.9 km.

Easy 14% Steady 34% Power-hike 33% Steep 19%
High point
2154m
Gain / km
89m
Max grade
42%

Snow & conditions

Low snow exposure

Elevation and latitude suggest snow is less likely, but the planner snow view is still useful for recent storms or high-country detours.

Route sections

Opening third
4.3 km
+899m / -93m
Middle third
4.3 km
+264m / -759m
Final third
4.3 km
+202m / -513m

Moderate effort, estimated around 3h 21m moving time using a trail run model: 7:00 min/km flat pace plus about 1h 35m for 1144m of climbing. Expect 19% steep-grade exposure; pace and fueling should be closer to mountain running than flat-road distance math.

Flat-only: 1h 30m
Climb cost: +1h 35m
Effort distance: 28.9 km

Fuel & gear

Energy
2150 kcal
Water
2.2 L

Plan roughly 18 small fuel units, then adjust for weather, aid, and personal effort.

trail shoespoleswind shell

Surface

≈0% paved · ≈100% unpaved
Mostly unpaved

Estimated for the full route from the 30% with mapped surface data in OpenStreetMap.

Elevation Profile

Elevation Profile

1,200m1,400m1,600m1,800m2,000m2,200m02 km4 km6 km8 km10 km12 km2,153m1,122m
Gentle (5–10%) Moderate (10–15%) Steep (15–25%) Very steep (>25%)

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