a "well," to retard corrosion. The wells are filled with petroleum coke to enhance the current's connectivity into the soil. Additionally, the coke regulates heat that the rod naturally emits when a current is induced; this is to mitigate the electrode's impact on the surrounding environment. A series of jumper cables radiating from the center of the circle feed the return current into the rods. At the center on the surface perches a small structure called a terminal house, which is also equipped with a transmitter that helps technicians monitor the electrode's performance. The "deep-well" setup of Path 27's electrodes is a variation of the "ring-style" electrode found on other HVDC projects such as the Nelson River Transmission System in Canada. The converters are linked to the electrodes by a pair of conductive cables, each measuring in thickness, to enable physical contact with the earth. These are the electrode lines, arteries for the return current—more precisely, the electrode line carries the current to the terminal house which then injects it through the electrode. Starting at both termini, the electrode line runs atop Path 27's main pylons in lieu of shield wires before branching off along a standalone set of steel utility poles. Steel poles have been selected for their resiliency in the hot, arid locales. The electrode line for the IPP converter has a total length of , and the Adelanto's extends . Uniquely, Adelanto's electrode line travels underground for its final approximately till the grounding site. The electrodes and electrode lines are distinct from the neutral wire, which would involve an extra third conductor along the span of Path 27—the former HVDC Vancouver Island being an example. Such method would likely be infeasible for its scope and magnitude. Route Following the regular power flow, Path 27 begins at the Intermountain Power Plant in Utah and heads briefly west before curving southward, passing over the U.S. 50/U.S. 6 duplex west of Hinkley. The DC line ventures though legions of dry basins and high mountains in the state due southwest; all the while crossing Utah Routes 21, 56, and 18; before reaching Nevada about north of Arizona's northwestern corner, simultaneously entering the Mojave Desert. Inside Nevada, Path 27 traverses the Mormon Mesa, bypassing Glendale and crossing the Muddy River. It bisects the Moapa River Indigenous Reservation lands before crossing Interstate 15 near Crystal. Across Las Vegas Valley, the line meets with