Development of Power Operations at the Coso Geothermal Field in Southern California (PDF). GeothermalResourcesCouncil (GRC) Bulletin. September–October 2002
the state oil & gas supervisor (PDF). Department of Oil, Gas, and GeothermalResources. California Department of Conservation ("DOGGR 2009"). 2009 [March
(原始内容存档于2012-04-25). Bertani, Ruggero, "Geothermal Energy: An Overview on Resources and Potential", International Geothermal Days, Slovakia, 2009 缺少或|title=为空
Shannon)和貝克湖(英语:Baker Lake (Washington))。 此外,喀斯開山脈擁有大量地熱能發電的潛能,是美國地質調查局地熱能研究計畫(Geothermal Research Program)的重點研究對象。有些地區已經開始使用這些地熱能,例如奧勒岡州的克拉馬斯福爾斯(英语:Klamath Falls