Delayed by good weather!
July 1st
Start and finish: Refuge d’Argentière
Distance: 7,6 km (1 km along the frontier)
Walking time: 4 hours (plus 30 minutes for the stops)
Vertical distance: 800 m uphill, 800 m downhill
Breakfast at 3 a.m. (again), off at 4 a.m., aiming at the Tour Noir, the next important summit. By 6 we were at the foot of a snowy couloir that led to the summit ridge. But it was too warm! Graham decided it would be unwise to go up it, with real avalanche danger say 3 hours later when we came down it again. So we said goodbye to the Tour Noir and went instead to the Col du Tour Noir, just 20 minutes away, then returned to the hut.
The next major summit is Mont Dolent, where Switzerland, France and Italy meet. The approach from the north was also compromised by the warm weather. The lower section involved some difficult rock climbing and would be exposed to stone fall, while the upper, steep snow slopes would be extremely soft and dangerous by the time we reached them. So we decided to do the Dolent from the south (Italian) side, which will cost us a day.
So down from the hut to the cable car at Lognan, in just over 2 and a half hours: another 6,5 km and 800 m down. Once in the valley, we found heat-wave conditions!