23-Alpine Passes Trail
MODERATE (1.6/10)Prarion โ Grimentz
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23-Alpine Passes Trail is a 11.7 km point-to-point moderate hiking route in Switzerland, running from Prarion to Grimentz. The route covers 435m of ascent and 1,175m of descent, with elevations ranging from 1,398m to 2,422m. Allow approximately 4h 02m for the full route.
The route is divided into 2 segments. The toughest stretch is the 9.9 km from Bec de Nava to Grimentz, climbing 312m (allow 3h 26m for this section). In contrast, the 1.8 km from Prarion to Bec de Nava is much gentler.
About 68% of the trail is runnable, but the remaining steep sections will push most people into power-hiking mode. Some pitches hit 60% gradient, so trekking poles are strongly recommended.
Budget roughly 1,941 kcal of energy expenditure and 2.4 L of water.
Mountain route up to 2422m. Best JuneโOctober; snow possible into June.
Elevation Profile
Route Map
Trail Splits
Waypoint-to-waypoint breakdown with estimated hiking times (Naismith's Rule).
| Segment | Dist | โ Ascent | โ Descent | Time | Cum. km |
|---|---|---|---|---|---|
๐ Prarion โ Bec de Nava | 1.8 km | +122m | -42m | 35 min | 1.8 |
โฐ๏ธ Bec de Nava โ Grimentz | 9.9 km | +312m | -1133m | 3h 26m | 11.7 |
| Total | 11.7 km | +435m | -1,175m | 4h 02m | 11.7 |
Pace & Fuel Calculator
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Terrain Analysis
Surface & Technicality
๐ฅพ Mixed terrain: expect sustained climbs between runnable sections.
Sun Exposure
โ๏ธ High sun exposure. 47% of the route is above the treeline (2000m) with minimal shade. In summer, start before 7am to avoid peak UV. Carry sunscreen, a hat, and extra water.
Current Conditions
Conditions for July
โ Snow unlikely at this elevation in July. Trail conditions expected to be clear.
Snow Conditions
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Suggested Gear List
Auto-generated based on 11.7 km, 435m ascent, max altitude 2422.5m, ~4h duration.
- ๐ Trail running shoes / hiking bootsRequired for any trail
- ๐ฑ Phone (charged) + offline mapNavigation & emergency contact
- ๐ง 2L hydration packNo water sources on route
- ๐ซ Trail mix, bars & sandwichEst. 1941 kcal burn
- ๐งด Sunscreen SPF 50+UV intensifies above 2000m
- ๐งข Sun hat / capExposed alpine terrain
- ๐งฅ Windbreaker / shell jacketSummit at 2422.5m โ wind chill
- ๐ถ๏ธ Sunglasses (cat 3+)Snow & rock glare at altitude
- ๐งค Warm mid-layer (fleece)Temps drop ~6ยฐC per 1000m
- ๐ฉน Mini first aid kitBlister plasters, tape, antiseptic
- ๐ฅข Trekking poles34% steep terrain, 435m+ ascent
- ๐ง Microspikes / light cramponsSnow risk in November, December, January
- ๐ฆต GaitersKeep snow out of boots
Logistics
This route runs from Prarion to Grimentz (11.7 km by trail). You'll need to arrange transport back to your starting point.
Nearby Points of Interest
โฐ๏ธ Peaks
- Bec de Nava km 1.8 ยท 1.4 km off trail
- Hirsihorn km 3.2 ยท 2.9 km off trail
๐ Nearby Places
- Les Girettes 1.3 km off trail
- Margueroula 1.3 km off trail
- Les Pralics km 0.9 ยท 1.6 km off trail
- L'Arella km 4.4 ยท 2.4 km off trail
- Les Morasses km 8.8 ยท 2.5 km off trail
Route Details
- Network
- National Trail Network
- Sport
- hiking
- Start
- Prarion
- End
- Grimentz
- Start Coordinates
- 46.20822, 7.61789
- OpenStreetMap
- View on OSM โ
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