PAPERS OX GEOGRAPHY AND GEOLOGY 



217 





Contour 



AFTER 

 TOPOGRAPHIC MAP OF 



SOUTHERN MINNESOTA 



Ev O .E.Meinzer 



Fie. 2. Southeastern Minnesota. or portion of the wheat produced in 



on the broad, nearly-level, loess- 

 covered, upland into which the fir of Root, "Whitewater, 

 Zun;bro and Cannon rivers are cut. 



Wheat culture in the area began in 1853 when a crop 

 of winter wheat was raised on the alluvial terraces in 

 Rolling-stone Valley in Winona County, 5 and probably 

 also in some of the terraces in Houston and Fillmore 

 counties. Such alluvial terraces rise in many places 

 above the flood plains of the streams, and comprise the 

 principal areas farmed in the valleys. Wheat raising 

 spread to the upland somewhat slowly I the valley 



e Ibid.. 



