Access comprehensive GIS information with the US Electric Power Transmission Lines dataset for Jefferson County, Illinois. This dataset contains detailed data on transmission lines, including those currently in service like the Ameren Illinois Company's overhead AC line running from Prairie State Station to West Mount Vernon. Complete with a voltage level of 345 kV, this dataset is sourced from high-resolution imagery and OpenStreetMap sources as of 2015. Ideal for GIS professionals engaged in energy infrastructure projects, this dataset provides precise attributes including ownership and voltage classifications.