Placer County in California is a vibrant hub for GIS professionals working on the facets of electric power infrastructure. This US Electric Power Transmission Lines dataset features an array of transmission lines identified as 'in service' across various voltage classes from the county. Consisting of nine detailed records, the set includes information about the ownership, the voltage of lines, and specific substations like Roseville and Cottonwood or Pocket and Rancho Seco. Each entry is deeply detailed, offering data inclusive of 2017-2018 validation methods primarily through imagery, and descriptions realizing the focus on electric bulk power transmission and control. GIS professionals will find this dataset conducive for detailed mapping, analysis, or upgrade planning for electrical transmission networks within Placer County.