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3 the seeded species; however, the snow accumulation may also cause • some runoff problems. Cover data was collected on volunteer species on all studies in ±he revegetation test plot in 1976; cover data in future years will lend insight into the ecology of these volunteer species. The elimination of the volunteer species on the one replication of the individual species seedings will act as a control in determining the competitive importance of the volunteer species. Lambsquarter and mustard do not appear to have any severe - negative effects with respect to reclamation; however, this may not be the case with a "weed" such as Canadian thistle. Canadian thistle is also a common weed in the mountain shrub vegetation type, and in contrast to lambsquarter and mustard which are annuals, Canadian thistle is a perennial; thus, it is very difficult to control once it is established. _ Big sage had very high seedling densities in some areas of the revegetation test plot in spite of the fact that it was not seeded in any areas of the test plot except fior the individual species seedings. Big sage seed is wind dispersed and apparently 1975 must have been a good seed year. Control and possibly eradication of these volunteer sage seedlings may be necessary in future years because it would not be desirable for studies on the test plot to become dominated by big sage. Daubenmire (1975)1 states that the dispersal distance of big sage seed is 33 m; seedlings on the test plot may indicate that big sage dispersal distances may be as high as 50 m. In either case, we would recommend that to alleviate high densities of volunteer big sage • seedlings on a reclaimed site the big sage be removed for a distance of a± least 50 m around the site; however, we are not recommeding total elimination of big sage from reclamation usage. The following sections of this report discuss each study in the revegetation test plot. Each section consists of an introduction; an explanation of treatments, seed mixes used, seeding methods and dates, and evaluation dates; and a results section containing a table of surrniarized data and a discussion of the major points. A plot diagram with the treatments labeled accompanies each section of this report (figures 2-14); Figure 1 shows the general revegetation test plot design. Vegetation analysis and runoff sampling methods are described in the appendix (pages 65-66) and precipitation data is recorded on Appendix Table 1. Precipitation data from the Meeker weather station which is 24 miles from the revegetation test plot indicates that the winter of 1975 and 1976 and the summer of 1976 were dryer than normal. This report supersedes the 1975 report. Several corrections in the text, tables, and figures have been made since the 1975 report. All of the unsummarized cover data and the shrub count data are in Appendix Tables 1-19. Daubenmire, R. 1975. Ecology of Artemisia tridentata subsp. tridentata in-the state of lJashington. Northwest Sci. 49:24-35.