Dei diedri - Cima Cason di Formin
This climbs the obvious two corners up the West Face of Cima Cason di Formin. The first faces south and is 80 meters long, whilst the second, facing north and two thirds of the way up, can be done in one pitch. Exit from the ledge (shared with via Dallago) to the right, and climb up the final chimney past the wedged block.
Passo Giau is reached easily either from Cortina via the SS48 and SS638, or from Caprile for those coming from the Agordino.
AccessCima Cason di Formin is reached by driving towards Passo Giau from Cortina and parking the car at Rucurto. Take the signposted path no. 437 to Rifugio Palmieri and turn off at the fork with the no. 435 for the Val Formin. Continue until this levels out beneath the wall, and then walk up the scree slope. Start on the wall to the right of Diedro Dallago.
DescentThe final section of the route and the descent is the same as for Diedro Dallago. Exit from the corner and climb up, traversing right to a loose gully. Ascend this and reach a wedged block; climb past this (grade 5, pegs) and then walk down towards the lake and the slopes grassy below, before heading left to the saddle, which leads to another gully and then quickly down the side of the mountain to the base of the route. As an alternative to the loose gully, climb the wall to the left.
GearThe belays and pitches have some in-situ gear, but the cracks and threads accept plenty of gear.
