As we walked a low ridge we came upon a mystery: a dozen square feet of desert pavement formed by gray Archaic potshards and eleven fragments of chert knives, none from the same knife.

Patricia said: Nah, no mystery. Some Archaic woman, PMS-ing, had busted her eight pots and eleven knives, hollering, “I’ve had it! Mend your own damn loincloth!”

No trace of habitation. Had we stumbled on a sacrificial place, where pots and knives were broken to send their spirits onward with the dead? Was it the site of a solstice ritual like Zuni’s, when pots were smashed? As a theory I like Paleo PMS.