 It is the largest salt marsh in the state.Before the marsh was protected by the state ownership, there was considerable construction on some of the higher lands in and around the marsh, which stretches from Old Orchard Beach, south of Scarborough, nearly to Cape Elizabeth, to the town's north.The acreage of the Scarborough Marsh Wildlife Management Area continues to grow as a result of organizations such as the Friends of Scarborough Marsh and the Scarborough Land Trust and the town of Scarborough, buying or taking donated ownership of privately held land within or bordering the marshland.