The Purple Plow Challenge is a special project of the American Farm Bureau Foundation for Agriculture (AFBFA) and made ...

In the dense forests of Michigan’s Upper Peninsula, archaeologists have made an astounding discovery: ancient farmlands that challenge everything we thought we knew about Native American agriculture.

Archeologists studying a forested area in northern Michigan say they've uncovered what is likely the largest intact remains of an ancient Native American agricultural site in the eastern half of the ...