In the middle of the Jemez mountain range in New Mexico, stands a huge rock that is roughly in the shape of a teapot. Virtually alone in a grassy clearing, Teakettle Rock looks a bit out of place, like it was flown in by helicopter and dropped there on purpose. Of course, there is a logical explanation for its existence. Teakettle Rock is made of Cutler sandstone, laid down around 300 million years ago when the area was the bed of an inland sea. Over the eons, the rock around…