1997. United States. National Imagery and Mapping Agency. This datalayer is a point coverage representing worldwide miscellaneous industry point features and was published as part of the USGS Global GIS : ... American Geological Institute.
    
  
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      1973. Flint, Harold J. Scale approximately 1:510,000. "This map is a revision of the 1968 publication ..." Includes directory of oil pipe line companies and index to gas ... Ohio. Department of Natural Resources.
    
  
    
      1975. Scale approximately 1:2,000,000. "Map available also at a scale of 1 inch = approximately 8 miles." Shows gas and liquid petroleum storage areas, p... Ohio. Division of Geological Survey.
    
  
    
      1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing various types of processing and treatment plants located throughout current VMap1 geographic covera...
    
  
    
      1995. National Geospatial-Intelligence Agency. This datalayer is a polygon coverage representing various types of processing and treatment plants located throughout current VMap1 geographic cove...
    
  
    
      1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing pumping stations located throughout current VMap1 geographic coverage areas. Pumping stations for o...