In accordance with the policy outlined by the Forest Service watersheds used for municipal supply or irrigation continue to receive first consideration. Large sums are not, however, being spent on such watersheds where any uncertainty as to the outcome exists; that is before successful methods have been perfected by experiment. In addition to watersheds, reforestation work is being conducted for the primary object of producing timber only where climatic conditions and other factors are extremely favorable. As far as possible these areas are being selected with reference to the low cost of the work, natural conditions which insure rapid tree growth, and urgent local need for additional timber supplies. These favorable conditions generally obtain in Washington, Oregon, Idaho, Montana, Minnesota, and Michigan and it is in these States that the best results have been obtained. In California, Utah, Nevada, Colorado, and the Southwest the work is restricted to intensive experiments on a small scale, until successful methods of meeting the adverse local conditions have been perfected. [Illustration: Figure 21. Preparing the ground with a spring-tooth harrow for the broadcast sowing of tree seeds. Battlement National Forest, Colorado. This view was taken at approximately 10,000 feet elevation. Photo by the author.] [Illustration: Figure 22. A local settler delivering a load of Lodgepole pine cones at the seed extractors, for which he receives 45 cents per bushel. Forest officers receiving them. Arapaho National Forest, Colorado.]