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6 <br />7/22/'75.1/ A photo of 11/18/'78 was used for the soil delinea- <br />tions. Fran the soils map a mylaz was prepared. It is a stripping <br />isopach showing depth of stripping, classified quality of topsoil <br />material and limitations. <br />Field observations and laboratory data were used to prepare inter- <br />pretations tables 4 and 5. 'ibpsoil quantities were computed fran <br />measurement of the map and soil horizon thickness and quality. <br />OF THE AREA <br />The azea mapped includes the S~, SW a, the S; N'~ SW; and about 16 <br />acres in the ~ SW4 SF36 of Section 25, T47N R16W in Montrose <br />County, Colorado. The total area is approximately 116 acres. A <br />previously disturbed or stripped area of about 13 acres along the <br />south border of SE4 SW4 was not typed as a soil map unit. <br />• C'f TMA'I`F <br />The climate is typically continental intermountain with cold win- <br />ters, moderately hot summers, low rainfall and relatively short <br />growing seasons. The Colorado weather Bureau report for Noivx~od <br />(neazest longtime station) is shown in Table 1. <br />Nonood is about 20 miles nearer the trountains at an elevation of <br />7020 feet and can be expected to have slightly Soler climate and <br />higher precipitation than at the Nucla area where elevations of <br />the field mapped range between 5672 and 5767 feet. With no exact <br />data, it is anticipated the mean annual tet~erature (MAT) should <br />be about 45° F (7.2°C) and the mean annual precipitation (MAP) would <br />be about 12 inches (30.5 centimeters). The soil tarq~erature zone is <br />classed as "frigid" (<9pC) and the moisture regime as ustic. <br />Other reports show about 50 inches A-pan evaporation potential <br />1/ See Pfap labelled Job No. 3424 P, Photo 7/22/75, Photo Symbol <br />• BFP. Mapped by Park Aerial Surveys, Inc., Louisville, Ky. <br />