There’s an effort underway in western Minnesota to preserve the Midwest’s last remaining acres of northern tallgrass prairie. Once, the grasslands spanned close to 25 million acres through parts of Minnesota, the Dakotas and Iowa. More than 90% of the original tallgrass prairie was plowed under – what remains today are only patches of the early grasslands. Under a new U.S. Fish and Wildlife program the hope is to keep these last few areas intact for years to come. The Great Lakes Radio Consortium’s Gretchen Lehmann reports: