Access comprehensive data on electric power transmission lines in San Bernardino County, California through our specialized dataset. Aimed at professionals in GIS and electric power infrastructure, this dataset includes details on 23 transmission lines noted for their operational status, ownership, voltage levels, and more. Key types in our records include both Direct Current (DC) and Alternating Current (AC) lines, with examples linking significant substations like Intermountain to Adelanto, and Westwing to Mead. Each entry is meticulously validated through imagery and other methods, ensuring reliable information for analysis and project planning.