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.
Stromer Spring25 bedrock mortars, cupules, and PCN-style petroglyphsElevation 2023 ft.We used to drink from Stromer Spring in the not-so-distant past. The Park District warns against doing it now.A nice, single-track trail passes near here. We followed it many times without ever stopping to examine these rocks. If we considered them at all, we dismissed them […]
East Goat Rock Camp4 bedrock mortars and a probable housepitElevation 1451 ft.We’d hiked around and through this area a number of times, but it took Jeff’s sharp eyes to find this beautiful site. A picturesque seasonal creek flows nearby in a rocky channel.Looking over the main mortar rock toward Alameda Creek. A protected basin lies […]
Jeff’s Niles Canyon MortarOne bedrock mortar and a house pit along Alameda CreekElevation 217 ft.This is another one of Jeff’s beautiful single mortar sites.The site is on the left side of the trail under the trees.These rocks sit on a terrace above Alameda Creek, which flows in the background, and are arranged in a horseshoe […]
Monte Bello Open Space–headwaters of Stevens Creek12 bedrock mortars and 34+ cupules, 14 on one rock and 20 on anotherElevation 2240 ft.Looking up at the site, another one of Joel’s South Bay discoveries.There are 14 cupules on the rock in the center of the photo. The proximity of cupule rocks to water sources is well-documented. […]
Rock Scramble JacalStacked rock complex above Alameda Creek overlooking the Rock Scramble.Elevation 1069 ft.Thanks to Michael for turning us on to this remarkable site. We’ve seen nothing like it in the Bay Area. It feels like a fortress. It could be a massive hunting blind, yet it contains elements that don’t seem related to the […]
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. […]
Upper Ukraina29 bedrock mortars at and around a creek confluence.Ukraina was the final and only safe home for Agapius Honcharenko, Ukrainian patriot and Greek Orthodox priest who was harassed by Tsarist police and special agents across Europe and America on account of his pro-Ukrainian and anti-Russian writings. That he found a safe haven on Walpert […]