Holly Marsh is a small saltwater marshland in Mashpee, Massachusetts on the shores of Popponesset Bay, Cape Cod.[1]
The marsh starts at Daniel's Island (actually a peninsula) and extends down both the mainland side and the Popponesset Island side of the Popponesset Creek.[2]
Mount Holly Marsh Preserve is a wetland near Mount Holly Springs, Pennsylvania. It is part of the Mount Holly Preserve and is maintained by the Nature Conservancy.