WIDE WEDNESDAY

It is Wide Wednesday and the theme is "old."  
~
Old is a relative term.  I'm old compared to a teenager.  Compared to a Sequoia tree or a Giant Redwood I'm a pip squeak.  Well, compared to either of those trees, these hills are old.
~
They've been here for 12-10,000 years and were formed as the last glacial advance left this area.  The landform is called a drumlin...you non-geologists can learn about drumlins here: https://en.wikipedia.org/wiki/Drumlin
~
They are formed as the glacier retreats...we know this because they would be pushed aside into a moraine if the glacier were advancing....like a bull dozer pushing up the earth. 
~
These hills are higher than this photo makes them look....in the neighborhood of 200 or more meters high.  Local cellular telephone purveyors find them to be convenient places to erect communication towers.......and the local farmers do not object as they get paid for the inconvenience.
~
The drumlin is higher on the north end and tapers off on the south end indicating the direction in which the glacier was moving when they were carved out of the drift material.  Composed mostly of gravel (drift), organic material from decaying plants has accumulated on the rock pile for the last 12-10K years, to produce farmable soil.
~
They are plowed in the contour style to minimize erosion and keep the soil from allowing gravity to drag it downward to the bottom of the hill.  There's a "swarm" of these drumlins between Sheboygan on the east and Fond du Lac on the west along the Hwy 23 corridor.  Check them out if you're ever in the area.
~
BEST IN LARGE.