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C 11"+ Brown (7.SYR 4/3) moist, cobbly loamy sand; <br />this layer contains 60 to 70 percent gravel, <br />cobble, and stones. <br />Annual precipitation averages between 12 and 16 inches. <br />Minimal winter snow cover results in lwo available moisture <br />for spring and early summer growth of cool season plants. <br />Rains during late July and August appear normal for the <br />Montane climatic zone. <br />Optimum growing season for native plants is 70 to 90 days <br />with a mean annual temperature of 37 to 40 degrees F. <br />Native Vegetation <br />Aspect of this site is a grassland, however, this becomes <br />a shrub-annual grass aspect with a decline in range condition. <br />Arizona - Idaho fescue, western wheatgrass, sedges, rushes, <br />and equirreltail are dominant on the site. Other grasses <br />include muttongrass and other native bluegrasses, needle- <br />and-thread, Indian ricegrass, Mountain rouhly, Junegrass, <br />blue grama, slimstem, muhly, and threeawn. Forbs include <br />phlox, mat penstemon, buckwheat, pussytoes, yarrow, aster, <br />daisy, and geranium. Shurbs include fringed sage, winter <br />fat, low rabbitbrush, big sage, tall rabbitbrush, smooth <br />horsebrush, yucca, currant, shrubby potentilla. <br />Native Vegetation found at this site and the estimated <br />species composition are: <br />Western Wheatgrass <br />Junegrass <br />Fringe Sage <br />Blue Grama <br />Slim Stem Muhly <br />Pinque Weed <br />Climatic Information <br />30% <br />10% <br />20% <br />10% <br />10% <br />10% <br />Total Annual Production <br />Favorable years <br />Unfavorable years <br />Median years <br />1,000 pounds <br />600 pounds <br />800 pounds <br />per acre air dry <br />per acre air dry <br />per acre air dry <br />Reclamation Plan <br />Reclamation of the Ansley Flats Pit will be limited. The <br />main objective to reclamation will be to maintain all sed- <br />iment and erosion on the site. Side slopes will be left <br />at 3:1 slope. The material being removed is very cobbly <br />and stoney. The amount of large rock will help to keep <br />this area from eroding. <br />