The Western, A Unique American Genre

I was thinking about genres since I have to identify one for The Laughing Ladies.  First, I thought it would be called a romance.  But, after browsing novels called romances and looking at their covers, I decided that was not where it belonged.  Then I tried historical fiction, but most books took place in the days of knighthood or involved kings and queens.  Wrong again!  That leaves calling it a western.  Once more, that didn't seem quite right.  The book has its focus on women, not men.  But it really is a Western, just one with a different slant.  It is about the taming of the West from a feminine perspective. 

I have decided:  The Laughing Ladies is a western historical romance.  If you know any others, I'd love to hear about them.