SW Walpert Ceremonial Site.
22 bedrock mortars and stone circle placements
Elevation 1365 ft.
There are extensive views from here.
Bob heads for the knob.
A closer view of the site. The South Bay lies at its feet.
Note the erosion and wear on these two old bowls. Their recessed, “Olla” rims are typically associated with boiling water or food preparation, but at this site, who knows?
The flat, worn surface of this volcano-like rock suggests that the person who stirred, mixed, or pounded the contents of the large Olla did so from a standing position.
A closeup of the Olla pan. Note the flat bottom. This is a rare type of mortar we’ve only encountered on Walpert Ridge and in the Black Hills southeast of Mt. Diablo.
The previous two photographs by Bob Bardell.
One should secure permission before visiting this site.