Geological Survey Maps of Mississippi counties, Rankin, Perry, Green County, Marion, Jasper, Pike, Washington, Simpson, Lawrence, Covington, Franklin, and other and Louisiana Parish, Tangipahoa, St. Tammany, St. Helena, Washington, and others, in metal cart. Geological Survey Maps of Mississippi counties, Rankin, Perry, Green County, Marion, Jasper, Pike, Washington, Simpson, Lawrence, Covington, Franklin, and other and Louisiana Parish, Tangipahoa, St. Tammany, St. Helena, Washington, and others, in metal cart.