Scene where Edna is attacked by the river

Easily the scariest scene I've ever seen in a zombie movie, and I've never been one to find zombie films particularly unsettling. The first 10-15 minutes of the film had me wondering if this movie was gonna pull through for me (I wasn't particularly impressed by the exposition or the characters initially), but when that thumping sound effect and growling echo began as she's standing by the river, and she slowly turns around to see that guy coming toward her, I KNEW I was in for a treat with this one.

I think the setting of this film is what makes it work so well, and the landscape in that scene is so ominous and eerie to begin with; she's out there on a dead-end road in a valley in the middle of nowhere on a cloudy afternoon; she's smoking a cigarette, and she senses there is someone nearby. At first glance, nobody. On second glance, there's an animated corpse dripping in river water walking toward her car.

I've been on lots of road trips through Montana and have been in locations that look similar to that valley landscape, and if I was alone somewhere out there like that and saw what she saw, I'd piss myself and probably go into cardiac arrest. Maybe it creeps me out more so because the location reminds me of places I've been, but I dunno— really, really scary scene. Well-crafted and well-acted, too.