Figure 58. A government timber cruiser's summer camp. These cruisers get a fairly accurate estimate of Uncle Sam's timber resources at a cost of from 2 to 5 cents an acre. Photo by the author 182 Figure 59. Forest officers moving camp while engaged in winter reconnoissance work. All food, beds, and clothing are packed on "Alaska" sleds and drawn by the men themselves. Photo by the author 184 Figure 60. A winter reconnoissance camp showing snow-shoes, skis, "Alaska" sleds, and bull hide used to repair the webbing on the snow-shoes. Lassen National Forest, California. Photo by the author 184 Figure 61. A group of giant redwoods. Santa Cruz County, California 186 Figure 62. A big Sugar pine tree about six feet in diameter. This is the most valuable timber species in California. Photo by the author 188 Figure 63. A Western Yellow pine forest in California. These trees are from four to six feet in diameter and from 150 to 200 feet high. Note the Forest Service timber cruiser measuring the tree at the left. Photo by the author. 188 Figure 64. Logging in California. Powerful steam engines pull the logs from the woods to the railroad and load them on flat cars. Photo by the author 190 Figure 65. The loaded flat cars reach the sawmill where the logs are unloaded and sawn into lumber. During the fiscal year 1917 timber sales on the National Forests brought into the National Treasury almost $1,700,000.00. Photo by the author 190 Figure 66. Scene in Montana. Forest officers constructing a telephone line through the Flathead National Forest 192 Figure 67. Forest Ranger, accompanied by a lumberman, marking National Forest timber for cutting in a timber sale. Coconino National Forest, Arizona 192 Figure 68. An excellent illustration showing the difference between unrestricted logging as practiced by lumbermen, and conservative logging as practiced by the Forest Service. In the foreground is the unrestricted logging which strips the soil of every stick of timber both large and small; in the background is the Forest Service logging area which preserves the young growth to insure a future supply of timber for the West. Bitterroot National Forest, Montana 194 Figure 69. View showing the Forest Service method of piling the brush and débris after logging, and also how stump heights are kept down to prevent waste. New Mexico 196