The Wind (2018)

The Wind is a 2018 horror suspense western. Horror westerns are not generally well known, and it's an underappreciated sub-genre. I tend to enjoy them. I watched it on Netflix. It's also available on Amazon Prime. Both of these are subscription services.

trailer:

The Hollywood Reporter says,

Loaded with atmosphere, this fragmented chiller is set far out on the American frontier, where a lonely wife — played by an intense Caitlin Gerard — starts seeing and hearing things... Well-shot and edited, with a script that keeps you guessing for a certain stretch of time...

Roger Ebert's site opens a positive review with this:

"The Wind," an impressive horror/western hybrid, is the kind of artful genre movie that some filmgoers think simply doesn't get made anymore. It's a modestly-scaled character study about Lizzy (Caitlin Gerard), a resourceful, alienated frontierswoman who — living in a desolate cabin in the middle of an undisclosed part of 19th century America — slowly loses her grip on reality.