For GIS professionals focusing on Lancaster County, Pennsylvania, our dataset of US Electric Power Transmission Lines offers a detailed look at key infrastructure components in the region. This dataset includes insights into overhead AC transmission lines that are currently in service, with comprehensive details such as voltage classes and owner information. Notable connections include the Hosensack to Three Mile Island and Limerick to Peach Bottom lines, each involving significant voltage levels and length. With data sourced primarily from imagery and validated as recent as 2020, these datasets serve as a vital resource for analyzing and planning around Lancaster County's electrical transmission framework.