A camping party built a fire against a lone lodge-pole. The tree was killed and suffered a loss of its needles from the fire. Four years later, a long green pennant, tattered at the end and formed of lodge-pole seedlings, showed on the mountain-side. This pennant began at the tree and streamed out more than seven hundred feet. Its width varied from ten to fifty feet. The action of a fire in a lodge-pole forest is varied. If the forest be an old one, even with much rubbish on the ground the heat is not so intense as in a young growth. Where trees are scattered the flames crawl from tree to tree, the needles of which ignite like flash-powder and make beautiful rose-purple flames. At night fires of this kind furnish rare fireworks. Each tree makes a fountain of flame, after which, for a moment, every needle shines like incandescent silver, while exquisite light columns of ashen green smoke float above. The hottest fire I ever experienced was made by the burning of a thirty-eight-year lodge-pole forest. In this forest the poles stood more than thirty feet high, and were about fifteen thousand to an acre. They stood among masses of fallen trees, the remains of a spruce forest that had been killed by the same fire which had given this lodge-pole forest a chance to spring up. Several thousand acres were burned, and for a brief time the fire traveled swiftly. I saw it roll blazing over one mountain-side at a speed of more than sixty miles an hour. It was intensely hot, and in a surprisingly short time the flames had burned every log, stump, and tree to ashes. Several hundred acres were swept absolutely bare of trees, living and dead, and the roots too were burned far into the ground. Several beetles prey upon the lodge-pole, and in some localities the porcupine feeds off its inner bark. It is also made use of by man. The wood is light, not strong, with a straight, rather coarse grain. It is of a light yellow to nearly white, or pinkish white, soft, and easily worked. In the West it is extensively used for lumber, fencing, fuel, and log houses, and millions of lodge-pole railroad-ties are annually put to use. Most lodge-poles grow in crowded ranks, and slow growth is the result, but it is naturally a comparatively rapid grower. In good, moist soil, uncrowded, it rapidly builds upward and outward. I have more than a score of records that show that it has made a quarter of an inch diameter growth annually, together with an upright growth of more than twelve inches, and also several notes which show where trees standing in favorable conditions have made half an inch diameter growth annually. This fact of its rapid growth, together with other valuable characteristics and qualities of the tree, may lead it to be selected by the government for the reforestation of millions of acres of denuded areas in the West. In many places on the Rockies it would, if given a chance, make commercial timber in from thirty to sixty years.