The Medway Megaliths are not the only Early Neolithic mound monuments in modern Kent, with another group of long barrows being located around the Stour valley. Here, three monuments are still evident: Julliberrie's Grave, Boughton Aluph barrow, and Elmstead barrow. These Stour monuments primarily differ from their Medway counterparts in that they have not been built using sarsens, and are thus non-megalithic, unchambered long barrows. The decision by the builders of these Stour Long-Barrows to avoid using stone as a building material was likely deliberate, for sarsens are naturally present in the local area and could have been obtained without too much trouble.