Keywords: NPMS Gas Transmission and Hazardous Liquid Pipelines in the United States.jpg Gas Transmission and Hazardous Liquid Pipelines in the United States created November 2015 with data from September 17 2015 National Pipeline Mapping System by the Pipeline and Hazardous Materials Safety Administration PHMSA part of the United States Department of Transportation http //www phmsa dot gov/staticfiles/PHMSA/ImageCollections/Images/Public_NPMSMap_A_noFOUO_pipelines_only jpg from http //www phmsa dot gov/pipeline/library/data-stats/data-visualization 2015-09-17 phmsa dot gov PD-USGov-DOT PD-USGov-DOT Gas pipeline maps Petroleum pipeline maps Pipeline maps of North America PD-USGov |