Sunrise on the Buena Vista Grasslands

Sunrise on the Buena Vista Grasslands

Sunrise on the Buena Vista Grasslands

These grasslands are a product of Wisconsin’s last glaciation.  Some 15,000 years ago a  glacier extended to just a mile or so from the irrigation derrick in the foreground.  The sun is rising over the great terminal moraine deposited by the glacier.  Meltwater from the glacier deposited a fine silt  beyond the glacier leveling the landscape. Overtime the silt was picked up by winds and was redeposited as a series of sand dunes, the undulations you see at intervals in the foreground.

Today the sandy soil provides wonderful grounds for potato production. A high water table allows pivot irrigation that makes the whole process possible.  Without frequent irrigation, the sandy soil becomes too dry to support crops.

Return to MD Leader Home Page

Advertisements

Tags: , , , , , , ,

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


%d bloggers like this: