Portuguese Bench — A Coso Shoshone Village

You're in Rose Valley now, the broad basin south of Owens Lake where the Sierra escarpment drops onto gently sloping alluvial fans and terraces. Near Coso Junction, locals call one of these grassy shelves Portuguese Bench — and long before anyone strung that name on it, it was home.

Tucked into the eastern foot of the Sierra here is a precontact village that archaeologists know as the Portuguese Bench site. A UCLA field school led by David Whitley excavated it from 1983 to 1986, and what they read in the ground was a deep, layered story. Using obsidian-hydration dating and the styles of stone projectile points, they found the village was lived in on and off from roughly 3,000 to 800 years ago by Coso Shoshone people. Beneath the surface lay a thick midden, fire hearths, worn living surfaces, possible storage pits — and a petroglyph panel carved with a mountain lion, bighorn sheep, a tortoise, and a figure some read as a "master of the animals." Dr. Alan Garfinkel, who identified the panel's imagery, dated the carvings to the Newberry Period — roughly 2000 BC to AD 1 — a narrower window inside that long span of occupation.

Why here? Look toward the volcanic country to the east, around Sugarloaf Mountain just a few miles off. The Coso field holds one of the West's great obsidian sources, with quarries clustered there. People hauled that black volcanic glass to benches like this one and worked it into knives and arrow points — the digs turned up heaps of flaking debris. Coso obsidian traveled astonishingly far, traded clear to the Pacific coast and across the Mojave.

Whitley famously argued the Coso carvings were the work of shamans recording vision-quest experiences — a compelling reading, though one scholars still debate. What isn't in doubt is the depth of the human history written into these unassuming Sierra benches at the desert's edge.