White Mesa
American Gypsum Company, White Mesa Mining District, Sandoval County, New Mexico, USA
The rocks capping the mesa are the middle Jurassic Todilto Formation. Under the Todilto are the pinkish Entrada Sandstone. The red rocks of the Triassic-aged Chinle Formation are at the base of the cliff.
At White Mesa, the Todilto Formation includes a thick sequence of gypsum. In the mid-2000s, gypsum mining operations discovered fissure-fill ...
© Nathalie Brandes