Outcropping Stone Large pieces of limestone or sandstone imbedded in hillsides or strategically placed within landscaping is known as outcropping. Used to give a rustic and natural look, it mimics the stone bluffs and escarpments found in nature. Available in a variety of sizes, colors, and types of stone it is ideal as accents in planting beds, natural retaining walls and even rustic steps or stairways.     Wisconsin Outcropping used as natural stairways Photo Courtesy of Fox Chase Landscaping, Inc.       Blue River Outcropping as a retaining wall   Photo Courtesy of Fox Chase Landscaping, Inc.     Weathered and Split Faces adds to the natural look of the stone Photo Courtesy of Fox Chase Landscaping, Inc.