Having returned to the camp, Lockwood now projected a special trip westward of twelve days, and prepared his outfit as follows: Shelter-tent, sleeping-bags, axe, sextant, etc., telescope, shot-gun and ammunition, medicine, cook’s bag, rubber blankets, small lamp, knapsacks, snow-shoes, rations for three at forty-five ounces each per day, and one sack of pemmican for dogs; total, 328¼ pounds. The _large_ tent was left standing with the big sledge alongside and the American flag flying from the upstander. They got off at an early hour on the 8th with the dogs in excellent condition. Much work was required to get over the rocks, but after that they proceeded satisfactorily until near the valley. This was found to be quite wide for a region where everything of the kind was more like a cañon than a valley in the ordinary sense. Its width was two or three miles, or perhaps in some places four, and the general gradients of the stream-bed (Dodge River) were very slight, perhaps thirty feet to the mile. Narrow, deep cuts in the cliffs and high ground around indicated tributary streams. Frederick having shot a hare, and gathered up the other food, they proceeded on their way, traveling now over thick, clear ice and hard snow, with now and then patches of stones. The valley seemed to come to an end some fifteen miles up-stream, a range of high hills running directly across it. After various tribulations in exploring a side gorge, at midnight on the 10th of May the party resumed travel up the valley. The condition of the sledge-runners rendered it necessary to reduce the weight to the least amount possible. This doubtless pleased the dogs, for the driver had to restrain their ardor. Leaving the sledge to pursue its way along the base of the hills, Lockwood ascended a considerable elevation and obtained a good outlook over the country. He was very agreeably surprised to find at the farther end of a gap up stream an apparent prolongation of the valley in the same general direction. On either side of this prolongation was a range of low heights, while the intermediate surface looked very level—so level that he took it for a long lake. To the left, just outside the heights on that side of the valley, he could see at intervals a glacier-wall, the north boundary of a great _mer de glace_. About twenty miles distant, the valley seemed again to be shut in by a range of hills, but over the tops of them, and at a great elevation on the distant horizon, he saw what seemed to be a snow-bank. This he made his objective point. Passing onward through the gap, they came to a long and picturesque lake which was named Lake Nan after an interesting niece; and coming to a place near the end of the valley, a break in the low heights to the left revealed the glacier they had before seen. Its surface was very distinct. Extending to the south a few miles, it soon reached an elevation that formed the horizon in that direction. It seemed a vast undulating surface, and,