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<br />a <br />~ <br />c..c <br />....-! <br /> <br />( <br /> <br />(' <br />'I <br /> <br />forward is not sufficiently long to indicate a firm trend, it is <br /> <br />interesting to note that a "line of best fit" applied to this <br /> <br />period parallels the line "line of best fit" applied to the period <br /> <br />1941 to 1948. <br /> <br />Two field trips were made into the area during the month <br /> <br />of July to study and photograph certain stock ponds. S. A. Rizvi, <br /> <br />Assistant Hydraulic Engineer for the Colorado Water Conservation <br /> <br />Board, Mr. Wallace A. Doe, Consulting Engineer from Ordway, Colo- <br /> <br />rado, and Bob Mariano, Water Commissioner for Water District No. <br /> <br />19, made this field trip. One day was used to study the area <br /> <br />northwest of Trinidad in the vicinity of Forbes, Hastings, Berwin, <br /> <br />and Ludlow. A second day covered a larger area northwest of Trini- <br /> <br />dad in the Apishapa Basin in the general vicinity of sarcilo, <br /> <br />Gulnare, Aguilar, Tyrone and Elmora. This was in rough mountain- <br /> <br />ous country and the Dry Valley area. Generally on this trip it <br /> <br />was found that most stock ponds were empty. The exceptions were <br /> <br />those ponds which had been built below natural springs in which <br /> <br />cases the ponds were full. These were small springs and it is <br /> <br />extremely questionable whether the water lost by evaporation from <br /> <br />the surface at these higher altitudes would be significant. The <br /> <br />area in the Apishapa Basin consists of a more rugged topography <br /> <br />than is general in the lower reaches of the basin. In this particu- <br /> <br />lar area there is some erosion due to the steepness of the slopes. <br /> <br />-7- <br />