“After breakfast at one o’clock, being, as I conceive, on the highest part of the route, I became desirous of ascending one of the peaks, and accordingly I set out alone on snowshoes to that on the left hand or west side, being to all appearances the highest. The labour of ascending the lower part, which is covered with pines, is great beyond description, sinking on many occasions to the middle. Halfway up vegetation ceases entirely, not so much a vestige of moss or lichen on the stones. Here I found it less laborious as I walked on the hard crust. One-third from the summit it becomes a mountain of pure ice, sealed far over by Nature’s hand as a momentous work of Nature’s God. ... The view from the summit is of too awful a cast to afford pleasure. Nothing can be seen, in every direction as far as the eye can reach, except mountains towering above each other, rugged beyond description. ... The height from its base may be about 5,500 feet; timber 2,750 feet; a few mosses and lichens 500 more; 1,000 feet of perpetual snow; the remainder, towards the top, 1,250, as I have said, glacier with a thin covering of snow on it. The ascent took me five hours; descending only one and a quarter. ... This peak, the highest yet known in the northern continent of America, I feel a sincere pleasure in naming ''Mount Brown'', in honour of R. Brown, Esq., the illustrious botanist... A little to the southward is one nearly the same height, rising into a sharper point. This I named ''Mount Hooker'' (his sponsor, William Hooker ) ...”