GRAND CALUMET WASTE SITE POINTS - 1951 --
Waste Site Inventory Points in Northwestern Lake County, 1951 (1:29,000)
Shows the 1951 waste site inventory point locations for the northwestern part of Lake County, Indiana. Waste site categories include coal, excavation, filtration plant, point discharge location, power plant, sewage disposal, slag, slag disposal, slag dump, and smoke.
This dataset was derived from imagery published as part of a four-volume series of reports produced by the U. S. Environmental Protection Agency.
The black-and-white photography was acquired by the U.S.G.S. on December 9, 1951.