Newcastle, Utah is a rural farming community located about 30 miles west of Cedar City, Utah along the southeastern edge of the Escalante Valley in Iron County. The Newcastle geothermal resource, low-to-moderate temperature hydrothermal system, was accidentally discovered in 1975 during an aquifer test of an irrigation well. Upon pump-testing of the well, Christensen Brothers--a local farming company (owners of Castlevalley Greenhouses)-- discovered that the well had penetrated a geothermal aquifer. Termed a “blind” geothermal resource, there are no obvious surface manifestations such as hot springs or fumaroles to suggest that a geothermal system is present at depth