Access comprehensive data on electric power transmission lines within Lee County, Illinois, tailored for GIS professionals. This specialized dataset includes key information on two overhead AC transmission lines currently in service, complete with details such as voltage levels and ownership. Notably, one line is operated by Commonwealth Edison Co, indicating its significance in the region's electrical infrastructure. With the exactitude provided by imagery sources and validation methods from 2015, this dataset empowers precision in spatial analysis and supports a broad range of project needs related to electrical transmission systems.