GORE: People think about geothermal energy - when they think about it at all - in terms of the hot water bubbling up in some places, but two kilometers or so down in most places there are these incredibly hot rocks, ‘cause the interior of the earth is extremely hot, several million degrees, and the crust of the earth is hot ...
Millions of degrees? Well, no one knows for a certainty, but estimates (of the hottest portions) pretty much max out at 7000c which is around 12,000f. Not even close to a million, but as still hot as Hades, no doubt.
My apologies.