The Blundell Geothermal Power Plant, named after former president of Utah Power and Light Harry Blundell, is located in Beaver County Utah, roughly 12 miles northeast of the town of Milford, and is owned and operated by PacifiCorp Energy. Energy for this plant is supplied by Roosevelt Hot Springs.
Roosevelt Hot Springs consists of intertonguing coarse-grained highly permeable and fine-grained low permeability rocks creating alternating zones that encompass more than 30,000 acres (121 km2) along a north–south fault to the west of the Mineral Mountains. Ground water is heated by intrusive volcanic rock that is in turn replenished by rain and snow in the Mineral Mountains that travels through highly fractured and permeable flow zones, which are estimated to be 840 feet (256 m) thick.