Farmland in Utah is chiefly concentrated in the area west of the Wasatch Front, where soils are fertile and streams and rivers from the mountains provide water. In addition, there are productive farming areas in the river valleys. Nearly three-fifths of the non-federal land in Utah is rangeland used for livestock grazing. This has helped make beef and dairy production very important. In 1999 the sale of livestock and livestock products accounted for 75 percent of the farm income earned in Utah.