Monsieur Reynaud had been invited to accompany us on the excursion that is described in this chapter, but had arrived at Val Louise after we had left, and had energetically pursued us during the night. Our idea was that a pass might be made over the high ridge called (on the French map) Crête de Bœufs Rouges,[118] near to the peak named Les Bans, and that it might be the shortest route in time (as it certainly would be in distance) from Val Louise, across the Central Dauphiné Alps. We had seen the northern (or Pilatte) side from the Brèche de la Meije, and it seemed to be practicable at one place near the above-mentioned mountain. More than that could not be told at a distance of eleven miles. We intended to try to hit a point on the ridge immediately above the part where it seemed to be easiest.

We left Entraigues at 3.30 on the morning of June 27, and proceeded, over very gently-inclined ground, towards the foot of [pg 168]the Pic de Bonvoisin (following in fact the route of the Col de Sellar, which leads from the Val Louise into the Val Godemar);[119] and at 5 A.M., finding that there was no chance of obtaining a view from the bottom of the valley of the ridge over which our route was to be taken, sent Almer up the lower slopes of the Bonvoisin to reconnoitre. He telegraphed that we might proceed; and at 5.45 we quitted the snow-beds at the bottom of the valley for the slopes which rose towards the north.

The course was N.N.W., and was prodigiously steep. In less than two miles difference of latitude we rose one mile of absolute height. But the route was so far from being an exceptionally difficult one, that at 10.45 we stood on the summit of the pass, having made an ascent of more than 5000 feet in five hours, inclusive of halts.

Upon sheet 189 of the French map a glacier is laid down on the south of the Crête des Bœufs Rouges, extending along the entire length of the ridge, at its foot, from east to west. In 1864 this glacier did not exist as one glacier, but in the place where it should have been there were several small ones, all of which were, I believe, separated from each other.[120]

We commenced the ascent from the Val d’Entraigues, to the west of the most western of these small glaciers, and quitted the valley by the first great gap in its cliffs after that glacier was passed. We did not take to the ice until it afforded an easier route than the rocks; then (8.30) Croz went to the front, and led with admirable skill through a maze of crevasses up to the foot of a great snow couloir, that rose from the head of the glacier to the summit of the ridge over which we had to pass.

We had settled beforehand in London, without knowing any[pg 169]thing whatever about the place, that such a couloir as this should be in this angle; but when we got into the Val d’Entraigues, and found that it was not possible to see into the corner, our faith in its existence became less and less, until the telegraphing of Almer, who was sent up the opposite slopes to search for it, assured us that we were true prophets.

A SNOW COULOIR.

Snow couloirs are nothing more or less than gullies partly filled by snow. They are most useful institutions, and may be considered as natural highways placed, by a kind Providence, in convenient situations for getting over places which would otherwise be inac[pg 170]cessible. They are a joy to the mountaineer, and, from afar, assure him of a path when all beside is uncertain; but they are grief to novices, who, when upon steep snow, are usually seized with two notions—first, that the snow will slip, and secondly, that those who are upon it must slip too.

Nothing, perhaps, could look much more unpromising to those who do not know the virtues of couloirs than such a place as the [engraving] represents,[121] and if persons inexperienced in mountain craft had occasion to cross a ridge or to climb rocks, in which there were such couloirs, they would instinctively avoid them. But practised mountaineers would naturally look to them for a path, and would follow them almost as a matter of course, unless they turned out to be filled with ice, or too much swept by falling stones, or the rock at the sides proved to be of such an exceptional character as to afford an easier path than the snow.