Upper Ukraina
Mortar Count: 29
Open
Upper Welch Creek Road
Mortar Count: 5
Open
Vernal Pool
Mortar Count: 23
Open
4 housepits near Bear Gulch
9 Bedrock Mortars Near Sunol Regional Wilderness Interpretative Center
Mortar Count: 9
Open
Walpert Ridge Lookout
Mortar Count: 19
Open
Above Mission Peak Meadow
Mortar Count: 2
Open
Welch-Hurst house
Mortar Count: 14
Open
Agua Caliente Creek
Mortar Count: 7
Open
West Ohlone Rocky Ridge
Mortar Count: 17
Open
Agua Caliente East
Mortar Count: 3
Open
ALA-60 at Crow Canyon Road and Castro Valley Boulevard
Mortar Count: 44
Open
Alameda/Calaveras Creek confluence
Mortar Count: 3
Open
Whittell Marsh Shellmound
Albany Hill
Mortar Count: 4
Open
Wildcat Creek
Mortar Count: 4
Open
Alpine Pond — Palo Alto
Mortar Count: 35
Open
Wildcat Creek Cupule Rock
Alvarado Park
Mortar Count: 2
Open
Williams Gulch
Mortar Count: 2
Open
Alviso Adobe 38 cupule rock.
Windmill Overlook, Central
Mortar Count: 22
Open
Windmill Overlook, Lower
Mortar Count: 20
Open
Windmill Overlook, Upper
Mortar Count: 2
Open
Below McClure Springs
Benica Quarry #1
Mortar Count: 5
Open
Benica Quarry #2
Mortar Count: 20
Open
Blue Rock Springs Park — North
Blue Rock Springs Park — South
Briggs Creek below Alma College
Mortar Count: 25
Open
Brushy Peak Loop Trail
Mortar Count: 6
Open
Buckeye Canyon Mound
Canada del Cierbo
Mortar Count: 28
Open
Canyon Middle School
Mortar Count: 8
Open
Canyon Trail Park Petroglyph Boulder CA-CCO-152
Mortar Count: 20
Open
Castle Rock Park Partridge Farm area
Mortar Count: 7
Open
Cave Camp
Mortar Count: 5
Open
Charcoal Road — Saratoga
Mortar Count: 16
Open
Chinese Tree of Heaven
Mortar Count: 18
Open
Chitactac
Mortar Count: 75
Open
Circle of Circles
Mortar Count: 1
Open
Club Moto
Mortar Count: 30
Open
Dillon Point
Mortar Count: 4
Open
Don Edwards Preserve
Mortar Count: 4
Open
East Goat Rock Camp
Mortar Count: 4
Open
El Sobrante La Honda
El Sobrante Library
Evergreen Valley Cupule Rock on Silver Creek
First Terrace
Mortar Count: 31
Open
Frick Lake
Mortar Count: 16
Open
Garin Park, east spur
Mortar Count: 2
Open
Garin, single morta
Mortar Count: 1
Open
Glen Cove Park, aka Sogorea Te
Mortar Count: 20
Open
Gossip Rock
Mortar Count: 5
Open
Guadalupe Oak Grove Park
Mortar Count: 4
Open
Hill 1424
Mortar Count: 4
Open
Horse Heaven Trail
Mortar Count: 3
Open
Jalquin Vista Park
Mortar Count: 16
Open
Jeff’s Hideaway
Mortar Count: 4
Open
Jeff’s Lookout
Mortar Count: 1
Open
Jeff’s Niles Canyon Mortar
Mortar Count: 1
Open
Jeff’s Pestles
Mortar Count: 1
Open
Joel’s Fat Lip Mortars
Mortar Count: 3
Open
Kitchen Site
Mortar Count: 22
Open
Lake Anza, east side
Mortar Count: 10
Open
Lake Del Valle, Campsite 40
Mortar Count: 2
Open
Lake Del Valle, Campsite 74
Mortar Count: 1
Open
Lexington Reservoir
Mortar Count: 27
Open
Mare Island shell midden
Mid Upper Welch Creek
Mortar Count: 1
Open
Mid-Walpert Village
Mortar Count: 32
Open
Miller’s Creek
Mortar Count: 3
Open
Minnis Ranch Rock
Mortar Count: 14
Open
Mira Vista Park
Mortar Count: 10
Open
Mission Creek Trail Spring
Mission San Jose
Monte Bello Open Space–headwaters of Stevens Creek
Mortar Count: 12
Open
Mt. Diablo Winter Solstice alignment
Murietta Falls
Mortar Count: 3
Open
North Knoll, Chinese Tree of Heaven
Mortar Count: 12
Open
North Mission Peak
North Vargas Plateau
Mortar Count: 2
Open
North Walpert Camp
Mortar Count: 2
Open
North Walpert Lookout
Mortar Count: 2
Open
Observation Hill
Patterson Mound, CA-ALA-328
Pinole Shores Shellmound
Possible PCN
Post Office Rock
Mortar Count: 12
Open
Rancho Higuera
Mortar Count: 2
Open
Rankin Park Overlook
Mortar Count: 1
Open
Reservoir
Mortar Count: 7
Open
Rock Scramble Jaca
Rockwall to Campsite
Mortar Count: 8
Open
Ryan’s Hideaway
Mortar Count: 24
Open
San Antonio Creek Rock
Mortar Count: 4
Open
Sanborn Creek Village — Saratoga
Mortar Count: 19
Open
Second Terrace
Mortar Count: 20
Open
Siippery Rock at Big Basin
Mortar Count: 8
Open
Siplichiquin Shell Mound
South Fork Apperson Creek
Mortar Count: 1
Open
South Mission Peak
South of Prayer Circle
Mortar Count: 1
Open
South Vargas Plateau
Mortar Count: 3
Open
Southern Rocky Ridge
Mortar Count: 14
Open
Stienstra’s Easy Chair
Mortar Count: 2
Open
Stonebrae, 16th hole
Mortar Count: 5
Open
Stromer Spring
Mortar Count: 25
Open
Sulphur Spring
Mortar Count: 5
Open
Sunol Ridge Prayer Circle
Sunol Ridge, North of Prayer Circle
Sunol Ridge, South of Prayer Circle
SW Walpert Ceremonial Site
Mortar Count: 22
Open
Swett Ranch
Mortar Count: 16
Open
The Old Homestead
Third Terrace
Mortar Count: 6
Open
Top ‘o Brushy Peak
Mortar Count: 1
Open
Turtle Rock – Solstice site.
Upper Crow Creek
Mortar Count: 3
Open
Upper Fetus
Mortar Count: 5
Open
Upper Lake at the Alma College site
Mortar Count: 2
Open
Upper Palomares Canyon
Mortar Count: 1
Open
Upper San Antonio Creek
Mortar Count: 2
Open
Upper Shady Canyon
Mortar Count: 1
Open

Territory: Ohlone

Speakers of Ohlone dialects occupied the lands encompassed by Alameda, Santa Clara, Santa Cruz, San Mateo, and San Francisco Counties. One Ohlone triblet, the Carquin, occupied lands on the north shore of the Carquinez Strait in Solano County and probably in the southern part of Napa County.

Bottommost

Reservoir

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.

StromerSpring

Stromer Spring

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 […]

UpperShady2

Upper Shady Canyon

Upper Shady CanyonOne bedrock mortar and a possible rock cairnElevation 953 feetThanks to Nick the Scout for leading us to this site.This site offers a commanding view.Note how the mortar rim is raised in a “fat lip” configuration.

Blue Rock Springs Park — South

Blue Rock Springs Park — South Curved Rock Alignment Elevation 520 ft. This alignment extends along the north and east sides of a little knoll at the bottom of valley. Who constructed it and why? A closer look. The knoll is flat on top. A detail shot showing the stacking.

GRC1

East Goat Rock Camp

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 […]

NCM1

Jeff’s Niles Canyon Mortar

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 […]

MBOS5

Monte Bello Open Space–headwaters of Stevens Creek

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. […]

SJacal2

Rock Scramble Jaca

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 […]

SulphurSpring2

Sulphur Spring

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. […]

UpperUkraina

Upper Ukraina

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 […]