ORMA
Route around the Sasso Lungo massif built from three verified OSM/Waymarked Trails sources (relations 9435720, 1640019, and a local bridging segment of Alta Via 9 delle Dolomiti, relation 11094256), deliberately avoiding trail 525 and the Forcella del Sassolungo climb, confirmed to stay 1.48km+ clear of the Forcella at every point, so there's no cable-assisted exposed section on this route. Confirmed dog-friendly for the official long variant of this hike via AllTrails ("Dogs are welcome and may be off-leash in some areas"), this route covers similar lower-elevation territory.
Start here, Passo Sella, paid parking lot behind Hotel Passo Sella
Do not rely on potential water locations being available or drinkable. Carry enough for the full walk.
NOT a perfectly closed loop, a 225m gap remains between the start and end of the GPS track (down from 3.17km before adding the Alta Via 9 bridging segment), plus one internal ~920m jump partway through where two source segments meet. This is a long day out (18km), better suited to fit dogs. The bridging segment hasn't been individually checked for hazards, so keep extra attention there until it's verified on the ground.
The trail rating above describes the mountain, and it's the same for every dog. How it suits yours depends on their build, age and health. See this route's match — scored for a medium dog until you add your own, free and in a minute.
Before you go: the dog safety guide · water for dogs on trail · dogs on cable cars · meeting a guardian dog
