The first thing I thought of when I read this was Linda M. Hasselstrom: "Land Circle" and "Going Over East", both excellent.  And "Tough By Nature" by Lynda Lanker -- amazing!

Thanks so much for relocating this question .

You have so many great authors listed there, too.

I read A Thousand Acres by Jane Smiley a few years ago but the King Lear type of characters didn't appeal to me.

In Canada, Sharon Butala has written a great book called The Perfection of the Morning. 

I used to read some work by Sinclair Ross, stories set in the Canadian west.

Exciting that you have your own novel with that setting area.

Hope we hear more of these titles!

Patricia