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Alta Via 4 delle Dolomiti

Alta Via 4 delle Dolomiti — the trail guide

The Alta Via 4 delle Dolomiti is a 70.5 km trek in Italy, typically walked in 5–6 days, with 5899 m of total ascent. It rates Hard on our published rubric (84 m of gain per km, topping out at 2582 m).

Alta Via 4 — the "Alta Via di Grohmann" — is a demanding hut-to-hut traverse running roughly 71 km south from San Candido in the Puster Valley to Pieve di Cadore, threading the Sexten Dolomites, the spires of the Cadini di Misurina and the Sorapiss massif. Walkers come for its raw, less-crowded terrain and the turquoise Lago di Sorapiss. Cabled, exposed ledges and high cols make it one of the tougher Alte Vie; it is a linear route, both ends rail-served.

Quick facts

Distance70.5 km
Total ascent5899 m
Typical duration5–6 days
Difficulty (computed)Hard
Steepness84 m gain per km
High point2582 m
CountryItaly
RegionItaly

Difficulty is computed from gain-per-km and maximum altitude on a published rubric, identically for every trail in the catalogue — so an "Hard" here means the same thing everywhere on DirtbagMaps.

Elevation profile

Low point 1045 m · high point 2582 m · 5899 m total ascent over 70.5 km.

Historical climate normals — month by month

ERA5 reanalysis averages (2015–2024) for the trail area, referenced to approximately 1180 m elevation. These are gridded historical estimates, not observations from every stage and not a forecast. They cannot show current snowpack, river levels, fire restrictions, closures or whether a pass is safe.

MonthAvg highAvg lowAvg precip
Jan1°-8°56 mm
Feb4°-5°62 mm
Mar6°-3°66 mm
Apr10°0°88 mm
May14°4°137 mm
Jun20°9°127 mm
Jul22°11°137 mm
Aug22°11°136 mm
Sep17°7°100 mm
Oct13°3°109 mm
Nov7°-2°109 mm
Dec3°-6°89 mm

Planning notes

Frequently asked questions

How long is the Alta Via 4 delle Dolomiti?

The Alta Via 4 delle Dolomiti is 70.5 km, and most hikers complete it in 5–6 days. Total elevation gain is 5899 m.

How difficult is the Alta Via 4 delle Dolomiti?

It rates Hard on DirtbagMaps' computed rubric: 84 m of climbing per km walked with a high point of 2582 m. The rubric classifies every trail from gain-per-km and maximum altitude, so ratings are comparable across the whole catalogue.

Can this climate table tell me when the Alta Via 4 delle Dolomiti is open or safe?

No. The table contains historical ERA5 averages, not a forecast or a report of snow, flooding, fire, closures or route condition. Check the responsible land manager and a current local forecast before departure.

Where is the Alta Via 4 delle Dolomiti?

In Italy. The route starts near 46.730, 12.280 — the interactive 3D map above shows the full line, and the planner splits it into daily stages.

Can I get the GPX and plan daily stages?

Yes. Open the trail in the DirtbagMaps planner to drag the elevation profile into daily stages, see huts and accommodation along the corridor, and export a per-day GPX for your watch or GPS.

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