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VEGETATION A sandsage-prairie sandreed plant association was the only vegetation type mapped on the upland which is classi- fied as a Deep Sand Range Site in the Soil Conservation Service system and includes all of soil mapping units 1, 3, 4, and 5. A saltgrass-alkali sacaton meadow association meanders through sections 30 and 31, this is classified as a Sandy Meadow Range Site in the Soil Conservation Service system and includes all of soil mapping unit 7. A complex of Sandy Meadow and Deep Sand Range Sites is found in soil mapping unit 6. One hundred and five plant species (Table 1) were found in the six sections surveyed (sections 30 and 31 of T.3N, R.b3W. and sections 25, 26, 35, and 36 of T.3N., R.64W). Specimens of most of the species were collected and mounted. Identification of the mounted plants were verified by per- sonnel of the Colorado State University herbarium. One of. the species found in the meadow was tulip gentian (E'ustama gradi;'Zorum) (found about 200 feet south of the windmill in section 31), it is listed as rare in the computerized Plant Information t7etwork of Colorado State University. However, this species is not listed as rare on the Colorado or national lists of rare or endangered species. sandsage-Prairie sandreed Association The sandsage-prairie sandreed association, which is classified as a Deep Sand Range Site in the Soil Conserva- tion service system, occurs on Valent Sand and Osgood Sand soil series. Sub-site differences and variations in range condition create much heterogeneity in the association. The aspect is predominantly sandsage, which provides a crown cover varying from near zero to about 208, and a density up to about 3,000 plants per acre. sandsage is absent to rare on some of the low-lying Valent Sand bor- dering the meadow, and attains greatest cover and density on well-stabilized deep sands. The areas lacking sandsage constitute a small but distinctive sub-site, because the . shrub generally is most abundant on Valent Sand. Shrub stands generally are more consistent but less dense on Osgood Sand than on Valent Sand.