Ravine Ditch behind Spilmer's (Location Key)

Jefferson is built upon a plateau, and at some points on the edges of the town the land drops down quite steeply. Presumably the "ravine ditch behind Spilmer's" in "Mule in the Yard" and The Town is at one of those points (262, 264). The texts do not say who or what "Spilmer's" is, but the ditch is close enough to Mrs. Hait's property for her to walk there with the mule and at the same time probably far enough away to shield her from the smell of carrion after she gets back.