Before the fire lay a square mile or so of old burn which was covered with a crowded growth of lodge-pole pine that stood in a deep, criss-crossed entanglement of fallen fire-killed timber. A thousand or more of these long, broken dead trees covered each acre with wreckage, and in this stood upward of five thousand live young ones. This would make an intensely hot and flame-writhing fire. It appears that a veteran spruce forest had occupied this burn prior to the fire. The fire had occurred fifty-seven years before. Trees old and young testified to the date. In the margin of the living forest on the edge of the burn were numerous trees that were fire-scarred fifty-seven years before; the regrowth on the burn was an even-aged fifty-six-year growth. That night, as the fire neared the young tree growth, I scaled a rock ledge to watch it. Before me, and between the fire and the rocks, stood several veteran lodge-pole pines in a mass of dead-and-down timber. Each of these trees had an outline like that of a plump Lombardy poplar. They perished in the most spectacular manner. Blazing, wind-blown bark set fire to the fallen timber around their feet; this fire, together with the close, oncoming fire-front, so heated the needles on the lodge-poles that they gave off a smoky gas; this was issuing from every top when a rippling rill of purplish flame ran up one of the trunks. Instantly there was a flash and white flames flared upward more than one hundred feet, stood gushing for a few seconds, and then went out completely. The other trees in close succession followed and flashed up like giant geysers discharging flame. This discharge was brief, but it was followed by every needle on the trees glowing and changing to white incandescence, then vanishing. In a minute these leafless lodge-poles were black and dead. The fire-front struck and crossed the lodge-pole thicket in a flash; each tree flared up like a fountain of gas and in a moment a deep, ragged-edged lake of flame heaved high into the dark, indifferent night. A general fire of the dead-and-down timber followed, and the smelter heat of this cut the green trees down, the flames widely, splendidly illuminating the surrounding mountains and changing a cloud-filled sky to convulsed, burning lava.