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July 1993 5.3.6 Wetlands -30- 923-2515 A narrow band of wetlands occurs continuously along Armand Draw in saturated soils (Figure 2). These wetlands aze typical of the: herbaceous wetlands along Grassy Creek as described in Section 5.1.6. These wetlands are not managed differently from the surrounding native rangeland. They have not been seeded or enhanced with cultivazs and are not cropped for hay. They aze not recognized as a special unit. 5.3.7 Native Ran eg lands Native rangeland occurs extensively in the upper reaches of Armand Draw and as isolated pazcels amid the dryland agricultural fields in the lower reaches. They aze similar to the native rangeland along Grassy Creek as described in Section 5.1.7. These rangelands aze in the mountain Swale, brushy loam, claypan, and aspen woodland range sites, as described in Sections 5.1.7 and 5.2.7. 5.3.8 Drvland Agriculture The dryland agricultural fields in the middle Armand Draw grown on highly erodible soils were retired from crop production in 1989 and placed in the Conservation Reserve Program (CRP). The five year (1981-1985) mean yield, prior to retirement, was 32 bushels per acre for wheat, 36 bushels per acre for barley, and 30 bushels per acre for oats (Daughenbaugh 1992). The dryland agricultural fields located in lower Armand Draw and Scotchmans Draw had a 5 year (1981-1985) mean yield of 28 bushels per acre of wheat, and 37 bushels per acre of bazley (Daughenbaugh 1992). In 1987 fields on highly erodible soils were retired to CRP. Fields still in crop production along Scotchmans Gulch and Armand Draw have average yields of 26 bushels per acre for wheat and 32 bushels per acre for bazley. According to the ASCS, the Routt County averages for 1992 (Daughenbaugh 1992) are 24.7 bushels per acre for wheat, 37.4 bushels per acre for barley, and 36.9 bushels per acre for oats. These fields are generally ~• • Golder Associates