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Updated: May 22, 2025
First there is the band of cherty limestone, from which a sloped talus leads to the creamy sugary sandstone. Immediately below this begins the "red," which descends in strata of varying width and color down to a rather narrow-appearing slope of red talus, which leads the eye to the widest member of all the Grand Canyon strata. This is the so-called red-wall limestone.
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