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1 <br />' <br />' <br />' <br />, , <br />1 <br />' <br />' <br />' <br />' <br />' <br />, <br />' <br />' <br />' <br />' <br />1 <br />1 <br />i ' <br />III - LAND <br />Service Area <br />The area to be served by Yamcolo Reservoir is depicted <br />on Figure 1. The irrigated lands lie in a broad valley or park <br />spanning the divide between the Yampa River and Egeria Creek. <br />The name Yamcolo has been derived from the fact that part of the <br />lands to be served are in the Yampa drainage basin and those <br />lying along Egeria Creek are in the Colorado River drainage basin. <br />The basin divide through the project �� passes through rolling <br />hills and is difficult to trace without careful observation. <br />There is evidence to suggest that the Yampa headwaters originally <br />flowed down F.geria Creek. Thus the diversion of flow from the <br />Yampa to Egeria creek has been accomplished easily and irrigated <br />fields lie on the divide. Elevations o£ irrigated areas vary from <br />7,500 to 8,700 feet. The valley is underlain by the Mancos Shale <br />formation with the surface soils having been reconstituted by <br />glacial action and stream deposition. Some local volcanic extru- <br />sions are prominent in the valley floor. The valley is bounded <br />on the West by the iVhite River plateau and on the East by the Park <br />P.ange. Elevations of the surrounding mountains reach 12,500 feet. <br />Belosa the Town of Phippsburg the valley narrows for several <br />miles before broadening once more in the Steamboat Springs area. <br />�4ater supplies for irrigatxon are generally adeauate on presently <br />irrigated lands near Steamboat and rainfall is sufficient to permit <br />extensive dry farming above the irrigated lands. Several tributaries <br />which originate in the vicinity of Rabbit Ears Pass enter the River <br />above the Town of Steamboat Springs. Water supplies for the Town <br />and for Mt. Werner ski resort are obtained from these streams. <br />They are also extensively used for irrigation. Diversion of as <br />much as 40,000 Ac. Ft. of water per year to the Eastern Slope of <br />Colorado from these streams i_s nlanned by Eastern Slope interests. <br />From Steamboat Springs to Hayden the Valley floor is generally <br />narrow and irrigation from the river is limited to intermittent <br />meadows lying essentially in the flood plain. Housing and resort <br />areas are concentrated along the river banks and the need for <br />III - 1 <br />I <br />� <br />