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<;KOI.(M;IC.\I. AND NATURAL HISTOKV 

 Sl'HVKY OK MINNESOTA 



WASH I NOT ON CO U N TT 



BY N. H. WINCHELL 



M U I 



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No rib Pa rl 



C H H I S A C O 



B A Y T 



' O C 



" ,1 ,- / 



ir- Aik'i AJJ/I 4 > 







Ml. MO 



,K ELAN D 





CC. I ""o 



A',.,, 







! rinl'jjHiJ, 



, 



K. 28 Ifi 



WOO 



D B U R Y 



$ 



AFTON 



zo- as >. 



Explanation. 



HOI Trrrasz gravel ui-tL xunfi 



J Fijir flat ctaymOtre<rli'xxl<tnnnnti'(l 

 ' . Kolittni chilly '//// 

 K^3 Trenton, Limestone 

 I9BH St.Peter Sandstone 

 HB /ow Mug.J.imes(.pne 



Contour Linot 



tippri>.rif!<nii-t\ tin-i'ttc/i 30 fcc< 



