April of last year. In places where mollusks are abundant, which are particularly obvious along rocky shores, native people would harvest them, carry them back up to the terrace level, and discard the shells into piles that would accumulate for centuries. Soil accumulated around and over these piles, preserving them until erosion exposed them again.
Photo unmodified. July 15, 2014. FlashEarth Location.
Is This Your Hat?
2 years ago