Franklin, MN is the halfway point.
Western Nebraska.
Culiver, Missouri is halfway between Greenwood & Apple Valley
Giese, Minnesota
Sarona, WI
Normal, IL
Trimbelle, Wisconsin.
A good halfway point between these two locations is Paducah Kentucky.
Forsyth, MT
Roughly speaking, Wisconsin Dells, WI
Milan, OH
Rawlins, WY