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LESTER SERIES <br /> '['he Lester series consists of very deep,well drained soils that formed in cllcareous loamy glacial till on till <br /> plains and moraines.These soils have moderate permeability.Their slopes ran�e from S to 70 percent. <br /> �teart annual precipitation is about 28 inches.�lean annual tempe�ature is about=47 degrees F. <br /> TAXOYOI�tIC CL�,SS: Fine-loamy, mired, superactive, mesic Mollic HapludalFs <br /> TYPICAL PEDO�(: Lester loam �vith a coi�vex slope of about 9 percent on a gro�md <br /> moraine in a cultivated field. (Colors are for moist soil unless other�vise noted.) <br /> Ap--O to 7 inches; very dark grayish b�•own(lOYR 3/2) loam,grayisl� bcown(lOYR 5/2) <br /> dry; moderate fine st�bangutar blocky st�•uctuce; friabfe; many fine roots; about 3 percent <br /> gravel; slightly acid; abrupt smooth boundary. (6 to 10 inches thick) <br /> Btl--7 to 21 inches; browit(lOYR 4/3}clay loam; moderate medium subangular blocky <br /> structure; firm; many very fine roots;common very dark grayish bro�vn(lOYR 3/2}clay <br /> Flms on faces of peds and fe�v very dark gray{lOYR 3/l) organic coats on faces of peds; <br /> about 2 percent gravel; slightly acid; clear smooth boundary. <br /> Bt2--2I to 38 inches;dark yellowish brotivn (iOYR 4/4)clay loam;moderate medium <br /> subang«lar blocky structure; friable; common fine roots; common dark n�rayish bro�vn <br />� (lOYR 4/2) clay films on faces of peds and few very dark bco�vn (lOYR 2/2)organic <br /> coats on faces of peds;about 3 percent gravel; slightly acid; gradual smooth boundary. <br />; ` (Combined Bt horizon is 10 to 40 inches.) <br />; Bk1--38 to 50 inches; yellowish bro�vn(lOYR 5/4) loam; weak mediLim s�ibangular <br /> blocky structure; friable; few fine roots;common very pale brown(lOYR 8/2)cacbonate <br /> threads;about 2 percent gravel; violently effervescent; slightly alkaline; clear wavy <br /> i boundary. <br />� <br />� <br />� Bk2--�0 to 60 inches; yellowish brown {IOYR 5/4) loam; weak medium subangular <br /> blocky structure; friable; common fine distinct yello�visl�brown (lOYR 5/6) relict Fe <br />{ concentrations;common very pale bro�vn(lOYR 8/2)carbonate threads; about 2 percent <br />� gravel; violently et�fe�vescent;s(ightly alkaline; clear�vavy boundary. <br />, <br /> C--60 to 80 inches; ye[lowish brown{lOYR�/�}loam; ; massive; friable; con�mon <br />� medium distinct yellowish brown(lOYR 5/6)relict Fe concentrations and few fine <br />� distinct light brownist�gray(lOYR 6/2) relicE Fe depletions; abo��t 1 percent gravei; <br /> i strongly effervescent; slightly alkaline. <br />� <br /> j <br />� TYPE LOCATION: Wright County, Nlinnesota; abo�rt 3 miles west of Otsego, 1460 <br />� feet south and 2Q0 teet west of the nortlleast corner of Sec. 15,T.121 N., R.24 �V.; USGS <br /> Big Lake quad�•angle; lat. �5 degrees 17 minutes 29 seconds N.; long.93 degrees 41 <br />� minutes 3 seconds W.,NAD27 , <br /> I <br />� RA�iG� Ii�T CHARACTERISTICS: Depth to free carbonates ranges from 20 to 5� <br /> i inches. Rock fragments of�nixed lithology comprise t to 8 percent of'the volume of the <br /> j control section. <br />! <br />� <br /> i <br />! <br />! <br /> 1 <br /> i � <br />� � <br />