sandstone– Rio Blanco Flagstone Rio Blanco Flagstone is a beautiful sandstone boasting of cream, brown, rust and gold tones. This combination of colors blends well with most any project. Rio Blanco is the perfect stone to use for walkways, driveways and patios. This stone is palletized vertically and sold by the ton. AVAILABLE SIZES DESCRIPTION THICKNESS COVERAGE AREA Flagstone 2" minus 100 sf /ton Flagstone 1-1/2" minus 120 sf ton