In the same valley there are modern human remains from about the same date, 30,000 years ago, and some of those are from local chert, but more -- but many of them are made from obsidian from a long way away.
Samas orus on kaasaegse inimese säilmed umbes samast perioodist, 30 000 aastat tagasi, ja mõned neist on kohalikust ränikivist, kuid paljud neist on tehtud kaugel eemal leiduvast vulkaanilisest klaasist.