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• The area designated on Qt3 (see map at end of this report) is also being flood irrigated currently. The perimeter of this flood irrigated area is the Bostwick Ditch and lateral ditches off this main ditch. With the exception of small areas above these ditches, the entire portion of (Qt3) within the two mile study area is being flood irrigated. This region, however, does not lie within the Bolton Draw watershed area. Therefore, mining will not impact surface water availability. Groundwater quantities likewise will not be impacted because the recharge area for ground- water in this vicinity will not be disturbed by mining. Classification of Agricultural Land Uses As has been previously stated, the Bolton Draw watershed region is used as rangeland only. No cash crops are grown within the Bolton Draw watershed. The nearest area growing crops is the floodplain along the Canadian River where hay is grown. According to Mr. John Nuding, manager of the nearby Noffsinger Ranch, the soil • in Bolton Draw is not suited for crops as hay because of its poor characteristics (mainly high clay content). This is evident from the obvious failure of the Bolton Draw which couldn't even help native grasses to grow. The only land within the two mile study area that is capable of producing crops is the lower terrace region (Qt3). No other land above this terrace has the capability to produce crops. The vegetation above the Bostwick Ditch on the adjacent hill- sides consists of big sagebrush, prairie junegrass, a variety of wheatgrasses and native forbs not indicative of subirrigation. The vegetation of the flood irrigated areas below Bostwick Ditch consists of willows along the ditches, and native hay. Native hay in the North Park area usually consists of timothy, tufted hairgrass, some foxtail and sedges and rushes. Except for willows, these species • -111-