Abstract: A reflex locating device on an agricultural machine or the like, in particular a harvested material edge locating device, has a transmitter and a receiver with a locating beam region oriented on the agricultural machine so that it is slightly inclined toward the ground and, when the grain edge side position is correct, detects a part of the standing grain in front of the harvesting mechanism and detects with a remaining part the stubble field. The locating device for this purpose is arranged at a distance above the grain, and the locating beam region is oriented substantially perpendicular to the harvesting mechanism and detects inclinedly from above partially the grain field and partially the stubble field.