A base camp was established on 24th April, and four days later began the chief reconnaissance. They took with them a dog team, and, for equipment, their mountain tent, instruments, alcohol lamps, and provisions of pemmican, chocolate, hard-tack, sugar, and raisins. The total outfit weighed about 600 lbs. They started at night, when the snow was in better condition, and found the northern branch of the Muldrow, which they called the McKinley Glacier, rising in steps like a huge staircase. Camp was pitched at the base of a serac between two great cliffs of solid blue ice. On 3rd May they reached the top of the serac at an altitude of 8,500 feet, after a very difficult journey. Mr. La Voy, who was leading, fell into a crevasse, and the strain on the rope pulled Mr. Belmore Browne to the very edge. Mr. La Voy, however, stuck on a ledge of ice, which eased the strain; without that ledge it may well be that the whole expedition would have ended in tragedy. Bit by bit they fought their way to the head of the glacier, suffering severely from the glare of the sun, though the temperature was only one degree above freezing. They had now attained an altitude of 11,000 feet, and saw a low col on the mountain ridge, where they decided to make a high camp. This would be about 12,000 feet high, which would leave them between 3,000 and 5,000 more feet to climb before they reached the basin between the north and south peaks. It was now time to send the dogs home; so, after caching their equipment, they started back for the base camp, which they reached on the evening of 8th May. Some pleasant days were spent at the base camp. When they left it the countryside had still been in the grip of winter, but now everywhere there were grass and flowers and running streams. So far they had managed well. They had crossed the Alaskan range early enough to find the snow in good condition for dog sledding, and they had cached 300 lbs. weight of mountain provisions at 11,000 feet. They could therefore afford to wait till the days lengthened before venturing on a final climb. Here is Mr. Belmore Browne's picture of the landscape:--