Idaho is rich with geothermal activity. The state boasts dozens of natural hot springs for soaking, some close to city centers and others a hike away. But when Wanna Know Idaho listener Ted Eisele moved to Idaho in 1980, it wasn’t the natural hot springs that caught his attention about geothermal. What really blew him away was the fact that Idaho’s state buildings — like the Capitol and the state Supreme Court — were heated using geothermal systems.