The black soil on the eastern part of our 600
acre farm was covered with this very thick and heavy prairie grass. Thus
the grass plus the wet gummy black soil made the ground impossible to plow
with the wooden plows. Only with the development by John Deere of the iron
plow was cultivation of the land possible. In addition underground tile
pipe lines had to be installed to drain the soil sufficiently for
cultivation. It is believed that the black soil was deposited on this area
as the glacier that dug out the Great Lakes melted millions of years ago.