Abstract: A method and an apparatus for producing ridges on snow covered fields are described. A row of snow is severed from the snow cover and elevated to provide a trench in the snow cover. The row is then deflected to one side of the trench and deposited on the undisturbed snow covering beside the trench. This produces a wind barrier on the snow covered field, reducing wind erosion of the snow cover. In preferred embodiments, two spaced trenches are cut and the rows of snow removed from them are placed on the undisturbed ridge of snow between them. In the apparatus, the rows of snow are severed, elevated and deposited by a support plate carried on two runners. The support plate floats on the undisturbed center ridge of snow. The two rows are deflected to side by side positions for deposit on top of the undisturbed center ridge by a pair of adjustable deflector plates. The two runners are supported on adjustable skis so that depth control is possible.