Reservoir7 bedrock mortarsElevation 743 ft.These mortars sit where relatively level ground gives way to rocks and rising contours. They are subject to burial by soils washed down from above.One of a pair of bullet-shaped mortars on a slab near the five-mortar rock pictured above. Note the machined interior and flat rim.Photograph by Bob Bardell.
Sulphur Spring18 cupule rock; 5 bedrock mortars; slick 70′ away.Elevation 722 ft.The cupule rock. The use of cupule rocks here and elsewhere is, for the most part, shrouded in mystery. See Cupule Petroglyphs in the Diablo Range by E. Breck Parkman in the Journal of California and Great Basin Anthropology Vol. 8, No. 2, pp. […]
Third TerraceSix bedrock mortars spread over a fairly wide area.Elevation 1035 ft.A view of the third terrace.One of the two two-mortar rocks here. Note the battered interior of the funnel mortar.Looking at a mortar rock holding a big bowl mortar.The bowl mortar.Above photographs by Bob Bardell.The other two-mortar rock here.Bob stands near the other mortar […]
Club Moto30+ bedrock mortarsElevation 663 ft.Thanks to Adrian for turning us on to this site above the Club Moto dirt bike track.The mortars here sit on a little knob at the mouth of the Altamont Pass. Bob enjoys the spectacular view over the Livermore Valley.Many of the mortars here are huge and weathered. The sandstone […]