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eifzr4escent in parts; neutr�l in parts �nd slight(� alk�line in other parts; clear �vavy <br /> boundaiy. (0 to IO It1CI1l:S CI1'ICIC} <br /> Bk--=�7 to 60 inches: grlyish hrown (2.5Y �/2) clay loam; many tine and ine�lium distinct <br /> (i�ht olive bro�vn (?.�Y �/=4) f=e concerurations; massive; tirm; about � percent gravel, <br /> mostly shale; fe�v prominent black (!OYR 2;l) clay tilms in root ch�nnels; common <br /> white soft limy masses; stron;ly effervescent: slightly alkaline. <br /> TYP� LOCATIUN: Fre�bot•n Count , i�tinnesota� about 6 miles northeast of Albert <br /> Y <br /> Lea; about 9=40 feet �vest an�14S feet nocth of the eenter of sec. I 3, T. l03 �;., R. 2l I�V.; <br />� USGS Albert Lea qu�idran�le; l�t. =13 degrees -�3 mi►�utes ?9 seconds N.; loi�g. 93 de�rees <br />� 17 minutes �7 secorids `V., �I�D27 <br /> R:�NGE IN CHARaCTCRISTICS: Depth tc� f'ree carbonates ran�e from 2� t� G� <br />; inches. Gravel dominatzd by shale typically comprise 1 to 8 percent b�� valume, but they <br />� are lacking in the upper part in some pedons. The sand fracti��n oF these soil5 is <br />� domirtated b}'shale. <br /> i The Ap or A horizon has hue of lOYR, value oF 2 or 3, and chroma of ( o�•2, The E <br /> horiz�n, «here present, has hue c�f' lOYR, value of 3 to �, and clu•oma of I or?. It has <br /> redox featlires in some peclorls. Z�he A and E liorizons are loam, silt loam, clay loa�li, or <br /> silty clay loam. -They are sli�htly or moderltely acid, <br /> The E3t hurizan has a matrix abave depths of 30 inches thlt mostly has hue of lOYR or <br /> 2.SY, value of-1 or S, �nd chroitia of 1 or 2, but at least some subhorizon h��s chroma of'3 <br /> or=� in=�0 percent or more of ti7e matri:.. !t has below depths ot�30 inches hue of?SY or <br /> �Y, value of=4 oi• �, and chrornz of 2 to �4. It has few to many and fai►Zt ta prominent Fe <br />�'� depletions and concentcations. It is clay loam, silty clay loa���, silty cla}', or clay �vith a <br /> B/A clay rltios oF l.2 to 1.�. It avei•a�es bet��-een 35 and �� pe►•cent clay a�id ti•o�ii 10 to <br />; 30 percent sand at least in the upWe�•?0 iciches. It has subhorizons ��ith as inuch as �5 <br /> f , percent clay in some pedons. It is modecately to very stron�ly acid in the iip�er part and <br />� moderately acid to sli�htly alkaline irz tk�e lc��ver part. <br />� The B��, Bk or C horizon has hue ot 2.5Y or �Y, value of�� or 6, ar�d chrorna of 2 to �F. ft <br /> is laam, clay (oam, silty clay loam, silty clay, ar clay. ]t commanly has few or comman <br /> masses of lime u� the upper p��rt. <br /> CO�IPI:TINC S�I2I�S: Tllese are tfie 1���i�ralid �I�:�i�,� series. Bevier and Viexico <br /> soils do nut have ti-ee carbonates in the s�cies control section. <br /> GCOGIZaPHIC S�TTING: Lerdal soils have plane or convex slopes on gently sloping <br /> to moderately steep or hilly� gl�jcial rnoraines. Slope �radients �re commonly ? to 8 <br /> percent but ran�e Fro►n 1 to 13 �ercent. Lerdal soils formed in about 3 to 10 teet or more <br /> of modcratel}' tine or title textur�d clayey glacial till or flo��� till, high in content ot�sfiale <br /> over calcareous loam or clay lo��m till common to tfte Des Moines lobe of the Lat� <br /> �Visconsinan glacial stage. Vie�►� a►ulual air temperature ranges trom �� to �2 degrees f�. <br /> �[ean annual precipitation ranges E►•om 28 to 3? i�lclles. Frost-ti•ee days range fi•om 12� to <br /> I 72. Elevation above sea level ranges from 800 to l�00 feet. <br />