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.

JPest3

Jeff’s Pestles

Jeff’s PestlesOne bedrock mortar and five pestles near a spring northeast of Mission Peak.Elevation 1714 ft.Another one of Jeff’s amazing finds. Please do not remove any of these pestles. Leave them for others to enjoy.Pestles come in various shapes and sizes. Not all are flattened or tapered cylinders.Looking out over the nearby spring toward Mt. […]

D2Solstice1

Mt. Diablo Winter Solstice alignment

Winter Solstice alignmentElevation 734 feetThe rocks in this alignment are the only ones in the immediate vicinity.Dave hit the jackpot when he discovered this rock alignment, which lines up nicely with the gap between Mt. Diablo and North Peak.There is a 360 degree view from this hilltop.Awaiting the sunrise.Winter solstice December 21, 2010. Experts assure […]

PestleRockwallCamp

Rockwall to Campsite

Rockwall to Campsite8 bedrock mortars and grinding slick.What’s the function of this wall? A section line? Not likely. Why is it aligned with a Yrgin camp and a spring?Another view of the wall.Photograph by Bob BardellTake time to find all the mortars here and enjoy the ambience of this site. It’s cool in the summer, […]

SunolRidgePrayerCircle2

Sunol Ridge Prayer Circle

Sunol Ridge Prayer CircleStacked-rock prayer circle.Elevation 1664 ft.Our jaws dropped when we saw this near the bottom of a little hollow just below the top of Sunol Ridge.A closer look at the geoglyph.Photograph by Bob BardellPart of the “spine” of this stone circle is a natural rock outcrop.This site is on private property. One should […]

UpperWelchCreek

Upper Welch Creek Road

Upper Welch Creek Road5 bedrock mortars and 15 cupules, three on a secondary rock.Elevation 2180 ft.Thanks to Bill and Lou for turning us on to this site.The headwaters of Indian Joe Creek rise right across the road.This is one of our few drive up (or pedal up) sites.A closer look at some of the cupules […]

SunolPark

9 Bedrock Mortars Near Sunol Regional Wilderness Interpretative Center

9 bedrock mortarsNear Sunol Regional Wilderness Interpretative Center.Alameda Creek is the Bay Area’s largest. Many of its streambed cobbles look like pre-shaped pestles. Perhaps they were valuable trade items.The park authorities acknowledge and celebrate the Indian presence here.

BrushyPeakLoopTrail

Brushy Peak Loop Trail

Brushy Peak Loop Trail6 bedrock mortars and two probable mortarsElevation 1338 ft.We missed this rock in our earlier survey. The new Brushy Peak Loop Trail passes right by it.

ElSobranteLibrary1

El Sobrante Library

El Sobrante LibraryVillage site and shellmoundElevation 95 ft.Another one of Joel’s discoveries.The library was constructed right on top of a major village site, but you’d never know it.Midden soil.

FLM3

Joel’s Fat Lip Mortars

Joel’s Fat Lip MortarsThree bedrock mortars in a beautiful picnic siteElevation 776 ft.Thanks to Joel for discovering this special site.We’ve found plenty of mortars with rounded rims in the Bay Area but few whose rims rise above the surface of the surrounding rock and none that rise so dramatically.This rim forms a nearly perfect ring. […]

MuriettaFalls1

Murietta Falls

Murietta Falls3 bedrock mortarsHike out to Murietta Falls in the winter when the creeks are full of water.Bob sits on a rock slab not too far from the falls. Note the mortar hole full of water in the foreground.Murietta FallsPhotograph by Bob Bardell.