Vintage Photo Sunday - What Kind of Getup is that?

This woman is wearing an elaborate dress and hat, or as my mother would have said, "what kind of getup is that?"  She is in Nebraska, but I don't know anything else about the woman, or when this photo was taken.  By looking at her clothing, do you have any ideas of when this could have been taken?  Do you know what is the style called?

 

What Kind of Getup is that?