Since Route 20, a state highway, goes all the way across the state, from west to east, and it's between Wenatchee and the Canadian border, it seems to me that y

Since Route 20, a state highway, goes all the way across the state, from west to east, and it's between Wenatchee and the Canadian border, it seems to me that your straight line would have to end when it intersects Route 20 somewhere near Diablo.