1886. Sapinero is a dead, cold whistle-stop in the mountains of the Cimarron. No-one ever goes there, except horse-thieves, rustlers and minor crooks. It is no place for a young lady, but Casey LeClair finds herself stuck in the town. Original publication date has to be 20-plus years earlier at least.
Steve Frazee was born in Salida, Colorado. He began making major contributions to Western pulp magazines with stories set in the American West as well as a number of North-Western tales published in Adventure. Not surprisingly, many of Frazee's novels have become major motion pictures.
I was looking for a different book by Steve Frazee and came upon this one. Excellent and original western. "First Published" date has got to be wrong. Date read is a guess. I see that a Goodreads stalwart has added a cover image - excellent!