A great horror western novel is 'Bone Tomahawk'. It has a unique blend of western elements like cowboys and outlaws with horror in the form of a tribe of inhuman cannibals. It's a gritty and disturbing read. Then there's 'The Ballad of Black Tom' which reimagines the Cthulhu Mythos in a 1920s Harlem setting that has elements of the western in its rough - and - tumble street life and the horror of the Lovecraftian elements. Also, 'NOS4A2' by Joe Hill has some western - like themes in its road trip across America and the horror of the vampire - like character Charlie Manx.
Sure. 'The Wendigo' by Algernon Blackwood is a good one. It takes the idea of the wendigo, a fearsome and often western - associated monster, and creates a really creepy story. 'Hex' by Thomas Olde Heuvelt is set in a small western town where a hex has been placed. The horror unfolds as the townspeople deal with the strange and often terrifying events that follow. And 'The Cabin at the End of the World' by Paul Tremblay has some elements that can be related to the horror western genre, especially with its isolated setting and the sense of dread that comes with it.