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LESTER SERIES <br /> The Lester series consists of very deep,well drained soils that formed in calcareous loamy glacial till on till plains <br /> and moraines.T.hese soils have moderate permeability.Their slopes range from 5 to 70 percent..Mean annual <br /> precipitation is about 28 inches.IvIean annual temperature is abou�47 degrees F. . <br /> TAXONONIIC CLASS:Fine-loamy,mixed, svperactive, mesic Moliic Hapludal�s <br /> TYPICAL PEDON:`Lester loam with a cdnvex slope of about 9 percent on a gr�und moraine in <br /> a cultivated field. (Colors are for moist soil unless.atherw.ise noted.) . � <br /> Ap--O to 7 inches.;�ery dark grayish brown (l0YR.3L2j loam, grayish brown (1OYR 5/�) c�ry; <br /> moderate fine subangular blocky structure; friable;many f ne roots; about 3 percent grave�; <br /> slightl3�acid; abrupt smooth boundary. (6 to 10 inches thick) . <br /> Bt1--7 to 21 inches;brown (1OYR 4/3)clay Xoam;moderate medium subangular blocky <br /> strucfure;firm; many very fine roots;common very dark grayish brown(lOYR 3/2�elay.films on <br /> faces of peds and few very dark b ay:(lOYR 3/1)organic coats on faces of peds; about 2 percent <br /> gravel;:slightly acid; clear smoo.fl�b.oundary. <br /> - -- $t2--21 to 38 inches; dark yellov��ish brown(lOYR 4/4)clay loam;modera.te medium subangalar <br /> blocky structuie; friable;comrnon�ine roots; common dark gcayish brown (:1 OYR 4/2) clay films <br /> on faces of peds and few very dark brown (1:OYR 2/2) organic coats on faces of:peds; about 3 <br /> percent gravel;slightly acid; gradual smaoth boundary. (Combined Bt horizon is 10 to 40 <br /> inches:) <br /> Bk1--38 to SQ inches; yellowish brown(1OXR 5%4)loam;weak medium subangulaz blocky <br /> structure;friable;fev�� fine roots;common very pale brown (10YR 8L2)carbonate threads; about <br /> 2 percent gravel;violently effervescerit;slightIy alkaline; clear wavy boundary: . <br /> Bk2--50 to 50 inches;yellowish brown(10YR 5/4)loam; weak medium subangular blocky. <br /> sfructure; friable; common fine distinct yellowish brown �1:OYR 5>6) reIict Fe concentrations; <br /> common very pale brown(10'YfZ 8/2) carbonate threads; about 2 percent gravel;violently � <br /> effervescent; sliglitly alkaline; clear wav.y boundary. <br /> C--60 to 8p.inches;yellowish brown (1OYR�/4)loam; ; massive;friable; common medi.um <br /> distinct yellowish brown (lOYR�/6)relict Fe conaentrations and few fine distinct light brownish <br /> gray(lOYR 6/2)relictFe depletions; about 1 percent gravel; strongly effervescent; slightly <br /> alkaline. <br /> TYP�L-OCA�'ION:Wright County,:Minnesota; about 3 miles west of Otsego,:1460 feet south <br /> ' and 200 feet west of the nartheasr corner of'Sec. 15, T..121 N., R.24 W.; USGS Sig Lake <br /> quadrangle;laf.45 degrees 17 minutes,29 seconds N.; long. 93 degrees 41 minutes 3 seconds W.,. <br /> NAD27 <br /> RANGE IN C7r�ARACTERISTICS: Depth to free carbonates ran�es from 20 to 54 inchas. <br /> Rock fragments of mixed litholo�y:comprise l to 8 percent of the volume of the cont�•ol section. <br />