Greenhill Ranch, aka The Green RanchElevation 2,440 ft.We call Greenhill Ranch the “Shaman’s Redoubt” because we think it likely that shamen worshipping on Mt. Diablo used this beautiful site as a camp/staging area. In 1938-9 William Wurster, later to become Dean of the Architecture Department at Cal Berkeley (Wurster Hall is named for him), designed […]
Lower Deer Valley14 bedrock mortars.Elevation 495 ft.Way to go Jaime!Looking at the site. The mortar rocks in this little camp lie just off the Stewartville Trail near Sand Creek in Black Diamond Mines Regional Park.Bob looks down at one of the mortar rocks.These bullet-shaped mortars are deep and reminiscent of the ones found at China […]
Manzanita Trail11 bedrock mortars and slick.Elevation 1700 ft.Looking at the camp from near the trail.The relative remoteness from water suggests this may have been a seasonal camp, but who knows?That’s Manzanita trail in the background.A pair of mortars in a natural depression.Photograph by Bob Bardell.
Round Valley1 bedrock mortar with a pestle or hammerstoneElevation 442 ft.We found this mortar and its in situ pestle or hammerstone on the bank of Round Valley Creek.Bob illustrates how the pestle/hammerstone might have been deployed. The user would probably have straddled the mortar, however.A closer look at the pestle/hammerstone snugly ensconsed in its mortar.
Lower Highland Ridge PondFive bedrock mortars: On one rock: 2 semi-conical bedrock mortars, 1 of which is deep, one definite broken mortar and one possible broken mortar; 2 conical bedrock mortars on a rock slab in the creek west of the pond.Elevation 2065 ft.A view of the mortar rock and the nearby pond. This is […]
Mid Silva Creek Terrace11 bedrock mortarsElevation 1101 ft.Thanks to Joel for discovering this beautiful, protected site.Looking down on the site with Los Vaqueros Reservoir in the background. Beyond the hills of the Vasco lies the San Joaquin Valley and the Sierra Nevada.Looking into the site.The mortars are strung out on a terrace along the creek.A […]
Round Valley Village317+ bedrock mortars, two cupule rocks, and a stacked rock enclosure.CA-CCO-320This settlement is the largest of three that sit along the eastern base of the Black Hills.Joseph Chartkoff in “A Rock Feature Complex from Northwestern California,” American Antiquity, Vol. 48, No. 4, (Oct., 1983), pp. 745-760, notes the similarity between this stacked-rock enclosure […]