Alvarado Park2 bedrock mortars, 275+ cupules, 2 PCNs, and midden behind gazebo.This chlorite blueschist outcropping on Wildcat Creek has more cupules on it than any other we know of in the Bay Area. Was it just the blueschist found here and on Baxter Creek that attracted cuple-makers, or was something else at work?Jim and Heather […]
Chinese Tree of Heaven18 bedrock mortars (including 5 bowl mortars), 3 metates, 2 cupules, incised rocks, rock rectangles, rock walls, and rock-lined pathwaysThe Chinese Tree of Heaven tree (Ailanthus altissima) was introduced to California by the Chinese during the Gold Rush. The presence of this tree along with the dry-laid masonry skill apparent in a […]
Guadalupe Oak Grove Park4 bedrock mortarsElevation 296 ft.A funnel-shaped mortar or a small cone with a broad flaring mouth? You make the call.Skeptical Bob runs his hand over the inner surface of this shallow concavity to determine whether if feels “worked.” It does.A shallow mortar.Photograph by Bob Bardell.The mortar on this rock may have started […]
Mid-Walpert Village32 bedrock mortars, rock wall alignments, numerous cupules and grinding slicks.A low, stacked-rock rectangle on a slope just below the crest of Walpert Ridge dominates this site. Could it have been a sheepherder’s corral? What, for paralyzed sheep? So who would have stacked these rocks if not the Yrgin residents of the small village […]
Pinole Shores ShellmoundElevation 16 ft.Dave turned us on to this mound. Keep up the good work Dave!Perhaps this mound is best described as a “shell heap”. It’s spread all over the top of the spit.We’ve identified Ostrea lurida (Olympia oyster), Mytilus californianus (California mussel), and Mytilus edulis (blue mussel) at this site.Photographs by Bob Bardell.
Windmill Overlook, Central22 bedrock mortars; housepitsElevation 1380 ft.From this ridge one can see and hear the windmills from the Altamont Pass wind farms.Alien creatures stalk across Ssaoam land..Looking toward the site..Two of the mortar rocks here.There are several housepits at this site..The rocks here provide some shelter from the prevailing winds. Note the volvano-shaped mortar […]
Alviso Adobe38 cupule rock.In 1850 Augustin Bernal constructed his adobe, which still stands, near this cupule rock about a mile south of the Alviso adobe of Rancho Santa Rita. Today, some maps call this site “Alviso Adobe,” but the National Register of Historic of Historic Places lists it as “Bernal Adobe.”The location of Bernal Adobe […]