Family Owned since 1971 Rock, Stone and Sand Yard (RSSY) has served the Northern Virginia and the DC Metro Area and earned a reputation for on-site expertise and impeccable service. With easy access to I-95, our huge inventory and hard-working staff is available for you as a trusted source and selection of manufactured and raw landscape materials including gravel, sand, mulch, topsoil, compost, natural stone, flagstone, boulders, stone veneers and interlocking pavers from Belgard, Nicolock and more.