For GIS professionals focusing on the Multnomah County region, our US Electric Power Transmission Lines dataset offers detailed insights into the area's key infrastructure. This dataset, encompassing eight features of overhead AC transmission lines, provides essential data such as voltage level, ownership, and length of line. Notably, the dataset includes information from significant local energy distributors like Bonneville Power Administration and Portland General Electric Co. With voltage classes ranging from 100-161 to 345, and documented through sources like imagery, this collection is tailored for comprehensive analysis and planning in energy distribution and infrastructure development.