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<br />0) <br />l:'- <br />l:'- <br /> <br />- 3.- <br /> <br />The elevation of the project lands ranges from 5,600 to 6,700 feet. The <br /> <br />growing season is relatively short with an average frost-free period of 99 days. <br /> <br />The project lies west of a major range of mountains, and there is a considerable <br /> <br />variation in the amount of precipitation, both summer and winter, between the <br /> <br />western edges of the project areas and the eastern edge near the mountains.2I <br /> <br />Soils.--Lands presently irrigated in the project area which are to receive <br /> <br />supplemental water supplies consist primarily of bottomlands adjacent to the Little <br /> <br />Snake River or to Savery Creek. The soils are reported to be quite heterogeneous, <br /> <br />penerally with high calcium content, with fair organic content and good water-holding <br /> <br />capacities and permeability. There is relatively little evidence of alkali or <br /> <br />salinity problems in the presently irrigated lands, even though water tables are <br />quite common at depths of less than five feet in the bottomland areas.i1 <br /> <br />Project lands to receive a full water supply are ~enerally located on mesas <br /> <br />or rolling and sloping land at elevations considerably above the river~bottom'laDds. <br /> <br />Soils on both the l'!yominl' and Colorado sides in the vicinity of Ba1!gs are thought <br /> <br />to be satisfactory for irri~ation, although steepness of some slopes will present <br /> <br />difficulties and result in relatively high irrigation labor requirements. Problems <br /> <br />of salinity or alkalinity are not anticipated on these mesa or sloping soils. <br /> <br />Soils in the Two Bar area, located farther dOlmstream on the Little Snake River <br /> <br />near its confluence with the Yampa River, are extremely variable in texture. <br /> <br />Salinity and alkali can be expected to be a problem in the ~)o Bar area, and ade- <br /> <br />quate drains will be necessary to control this.~ <br /> <br />~fuen quantities of water are applied to the newly irrigated lands on the slopes <br /> <br />and mesas, it is possible that seepage and surface flows will create problems on <br /> <br />the lower lyinr, presently irrigated, lands on the river bottoms. Many of these <br /> <br />3TITiid. P. 2 <br />4/ Ibid. p. 11 <br />~ Ibid. P. 11-12 <br />