Forage plants left standing during the winter quickly lose nutrient value, and baling adds considerable labor costs. Gunnison, Colo., rancher Bill Trampe uses an efficient compromise. He cuts and windrows pastures in the fall and leaves the windrows in place for early winter grazing. The process helps preserve the nutritional value of forage while saving the expenses associated with baling and feeding hay. And even in the cold climate of Colorado's high country, the insulating quality of the windrows allows some regrowth of green forage, which his cows dig out from under the rows. Windrowing, he says, should take place in cool weather to prevent spoilage.