Excerto retirado do site SFGate:
"In this Oct. 15, 2010 photo, Brandon Forseth, left, and Blaine Williams work on drilling a small test well at Newberry Crater near LaPine, Ore. After pumping more than 20 million gallons of water into the side of an ancient volcano last year, AltaRock Energy, Inc., says it has succeeded in a key technological step toward turning geothermal energy into a major source of homegrown energy. The company says it is confident that it created three seperate geothermal reservoirs on a single well in a place where none existed before. (...)"
Photo: The Bulletin, Ryan Brennecke