Driveway Gravel (#53) is a popular stone used for gravel driveways. This crushed limestone is a light gray color and has limestone dust that is helpful when using this stone as a compatible base for laying pavers, walkways, and patios. Once water is applied to the stone, it compacts similar to concrete. This stone offers a sturdy base for a variety of landscaping projects. This product should be applied 3″ to 4″ in depth or as required by the project.