Joel’s Rockspring CaveTwo bedrock mortars in a rock shelter overlooking a seasonal creek.Elevation 467 ft.Joel discovered this very cool rock shelter not far from the Rockspring Place trail head in Walnut Creek’s Shell Ridge Open Space. The cave can be reached by an easy hike and would be a great place to hang out with […]
Lower Village Upper Overlook2 bowl bedrock mortars on a rock on Louise’s Shelf.Clyma orchard visible in the background.What was this huge mortar with the recessed rim used for? Was its position on the edge of this rock significant? Eliminate the scrub oak growing up from the rocks below, and you have a dead on view […]
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.
Bob Walker’s Cave1 bedrock mortar, rock shelter, stacked rocksElevation 2147 ft.The late Bob Walker was an environmentalist, photographer, and president of the San Francisco Bay Chapter of the Sierra Club. During his tenure there he pushed for the expansion of Morgan Territory Regional Preserve and saw its acreage increase from 970 to more than 5,000 […]
Fig Pig Gulch Meadow19 bedrock mortars, including one broken and one probable.Stacked rock alignments.Elevation 1215 ft.This is a beautiful place for a picnic.Some of the rock alignments here form a nearly complete rectangle, which may contain the ruins of an inner rectangle.Figure I.3 in Archaeological and Geoarchaeological Investigations at Eight Prehistoric Sites in the Los […]
Joel’s StragglerOne bedrock mortar beside Round Valley Creek not far from its confluence with Marsh CreekElevation 245 ft.This mortar rock is less than 100 yards from the main trail into Round Valley. Absent Joel’s curiosity and keen eye, it might have remained unknown to us for years, or even forever. Indians were everywhere, folks. Just […]
Lower Volvon Village200 bedrock mortars and a 32 cupule rock. A second cupule rock also at the site. Numerous housepits.Elevation 1445 ft.This is one of the largest collections of bedrock mortars in California, and it is only about a mile and a half away from the main Volvon Village.The Lower Village sits on the side […]