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SEP-16-2003 11:14 FROM: <br />Official Series Description -GULNARE Series <br />LOCATION GULNARE CO <br />Tentative Series <br />Rev. LAN/GB/AP <br />04/2001 <br />GULNARE SERIES <br />T0: 13038328106 <br />i (~ I <br />~/~, r g' <br />Y i `~ <br />P.6~13 <br />1~age 1 or s <br />The Gulnaze series consists of shallow, well drained soils that formed in residuum and colluvium from <br />sandstone. Gulnaze soils are on mountain slopes, hills, and ridges. Slopes range from S to SO percent. <br />Mean annual temperature is about 44 degrees F., and the mean annual precipitation is about 19 inches. <br />TAXONOMIC CLASS: Loamy, mixed, superactive, frigid Lithic Haplustalfs <br />TYPICAL PEDON: Gulnaze loam -open stand of ponderosa pine. (Colors are for dry soil unless <br />otherwise stated.) <br />Oi--O inches to 2; partially decomposed pine needles. <br />E--2 to S inches; grayish brown (] OYR S/2) loam, very dark grayish brown (lOYR 3/2) moist; weak fine <br />granulaz structure; very friable, nonsticky and nonplastic; S percent cobbles, 2 percent stones; neutral <br />(pH 6.8); abrupt smooth boundary. (2 to 4 inches thick) <br />Btl-S to 13 inches; brown (7.SYR S/4) gravelly clay loam, dark brown (7.SYR 4/4) moist; moderate <br />medium subangulaz blocky structure parting to moderate fine subangulaz blocky; hazd, firm, sticky and <br />plastic; 1 S percent pebbles; neutral (pH 7.0); clear smooth boundary. <br />(6 to 9 inches thick) <br />Bt2--13 to 18 inches; strong brown (7.SYR S/6) gravelly sandy clay loam, strong brown (7.SYR 4/6) <br />moist; moderate medium subangular blocky structure; hazd, firm, sticky and plastic; 20 percent pebbles; <br />moderately.acid (pH S.6); abrupt wavy boundary. (2 to 6 inches thick) <br />Cr--18 to 20 inches; decomposed sandstone. (0 to 3 inches thick). <br />R--20 inches; sandstone. <br />TYPE LOCATION: Las Animas County, Colorado; about 1 mile south of McDonald Reservoir and <br />1 /2 mile west of the Sarcillo Canyon Road; 2,500 feet south and 800 feet west of the northeast corner of <br />Sec. 1, T. 33 S., R. 67 W.; Latitude 37 degrees, 12 minutes 4 seconds N., longitude 104 degrees, 49 <br />minutes 58 seconds W. <br />RANGE IN CHARACTERISTICS: (Depths are given from the mineral soil surface) <br />Soil moisture regime: ustic bordering on udic. <br />Mean annual soil temperature ranges from 44 to 46 degrees F. <br />Mean summer soil temperature ranges from 57 to 60 degrees F. <br />Depth to lithic contact: 10 to 20 inches. <br />Thickness of the azgillic horizon: 8 to 12 inches. <br />Particle size control section: (weighted average) <br />http://ortho.ftw.nres.usda.gov/osd/daUG/GULNARE.html 09/10/2003 <br />