The lone southwestward 500 kV PG&E line crosses the Diablo Ridge, rising to 808 m (2,650 feet) near Mount Hamilton. The same line then heads into the Metcalf substation near San Jose and the Metcalf Energy Center. Leaving Metcalf substation, the line crosses the southern Santa Cruz Mountains with a 230 kV line and enters the large Moss Landing Power Plant substation in Moss Landing. The same line then heads east to rejoin the parallel PG&E lines at the Los Banos substation, effectively forming a 500 kV loop.