DescriptionPiedra Lumbre Formation contact with Pilar Formation.jpg
English: This image shows the two formations of the Calymmian Trampas Group, deposited in the Pilar Basin 1.45 billion years ago. The main mass of rock at upper left is Piedra Lumbre Formation. It is in contact with the more thinly bedded Pilar Formation at lower right. The location is the highway from Dixon to Picuris Pueblo.
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Captions
This image shows the Piedra Lumbre Formation, upper left, in contact with Pilar Formation, lower right