Volvon Village on Mallory Creek
Mortar Count: 715
Open
Upper Ukraina
Mortar Count: 29
Open
Upper Welch Creek Road
Mortar Count: 5
Open
Upper Whipsnake Trail
Mortar Count: 2
Open
Vernal Pool
Mortar Count: 23
Open
9 Bedrock Mortars Near Sunol Regional Wilderness Interpretative Center
Mortar Count: 9
Open
Volvon Overlook
Mortar Count: 3
Open
Above Condor/Coyote Trails
Mortar Count: 5
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
Whelk Lookout
Mortar Count: 2
Open
ALA-481
Mortar Count: 2
Open
Whelk Pond
Mortar Count: 5
Open
ALA-60 at Crow Canyon Road and Castro Valley Boulevard
Mortar Count: 44
Open
Alameda/Calaveras Creek confluence
Mortar Count: 3
Open
Albany Hill
Mortar Count: 4
Open
Wildcat Creek
Mortar Count: 4
Open
Alpine Pond — Palo Alto
Mortar Count: 35
Open
Alvarado Park
Mortar Count: 2
Open
Williams Gulch
Mortar Count: 2
Open
Willow Park Golf Course
Mortar Count: 10
Open
Below Cave Point
Mortar Count: 11
Open
Windmill Overlook, Central
Mortar Count: 22
Open
Below Jamie’s Knob
Mortar Count: 4
Open
Windmill Overlook, Lower
Mortar Count: 20
Open
Below Knobcone Point Road
Mortar Count: 21
Open
Windmill Overlook, Upper
Mortar Count: 2
Open
Windy Point
Mortar Count: 9
Open
Below Rock City
Mortar Count: 12
Open
Benica Quarry #1
Mortar Count: 5
Open
Benica Quarry #2
Mortar Count: 20
Open
Black Hills Trail
Mortar Count: 3
Open
Blue Oak Trail
Mortar Count: 16
Open
Bob Walker’s Cave
Mortar Count: 1
Open
Bob’s Mortar
Mortar Count: 75
Open
Briggs Creek below Alma College
Mortar Count: 25
Open
Briones Valley
Mortar Count: 2
Open
Brushy Peak Loop Trail
Mortar Count: 6
Open
Butcher Road Milling Station
Mortar Count: 9
Open
Camp Confluence
Mortar Count: 1
Open
Canada del Cierbo
Mortar Count: 28
Open
Canyon Middle School
Mortar Count: 8
Open
Canyon Milling site
Mortar Count: 29
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
Cistern Bath
Mortar Count: 1
Open
Club Moto
Mortar Count: 30
Open
Condor/Coyote Trails
Mortar Count: 2
Open
Coyote Trail below reservoir
Mortar Count: 7
Open
Curry Creek Milling Station
Mortar Count: 18
Open
Deer Island
Mortar Count: 2
Open
Del Puerto Canyon
Mortar Count: 20
Open
Diablo Grande Cave
Mortar Count: 9
Open
Dillon Point
Mortar Count: 4
Open
Don Edwards Preserve
Mortar Count: 4
Open
Donner Creek
Mortar Count: 2
Open
Downstream from the Whelk Pond
Mortar Count: 1
Open
East Goat Rock Camp
Mortar Count: 4
Open
Elephant Rock
Mortar Count: 1
Open
Fallen Oak Village
Mortar Count: 46
Open
Fig Pig Gulch Meadow
Mortar Count: 19
Open
First Terrace
Mortar Count: 31
Open
Founders Ridge
Mortar Count: 3
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
Green Valley Creek
Mortar Count: 2
Open
Green’s Village in Fig Pig Gulch
Mortar Count: 75
Open
Guadalupe Oak Grove Park
Mortar Count: 4
Open
Hematite Processing Site
Mortar Count: 12
Open
Highland Ridge Lookout
Mortar Count: 1
Open
Hill 1424
Mortar Count: 4
Open
Hog Canyon
Mortar Count: 7
Open
Horse Heaven Trail
Mortar Count: 3
Open
Hume Grove
Mortar Count: 1
Open
Hummingbird
Mortar Count: 10
Open
Indian Tree
Mortar Count: 6
Open
Intersection of Devils Slide Trail and Trail Through Time
Mortar Count: 1
Open
Intersection of Molluck and Coyote Trails
Mortar Count: 11
Open
Jalquin Vista Park
Mortar Count: 16
Open
Jamie’s Knob
Mortar Count: 13
Open
Jan Enderle Village
Mortar Count: 35
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
Joel’s Rockspring Cave
Mortar Count: 2
Open
Joel’s Straggler
Mortar Count: 1
Open
Keller Ranch
Mortar Count: 2
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
Lion’s Mane Village
Mortar Count: 72
Open
Live Oak Campground
Mortar Count: 28
Open
Long Canyon and Marsh Creek
Mortar Count: 36
Open
Los Meganos State Historic Park
Mortar Count: 2
Open
Los Vaqueros Log Cabin Village
Mortar Count: 60
Open
Los Vaqueros Overlook
Mortar Count: 2
Open
Los Vaqueros Pond Village
Mortar Count: 130
Open
Louise’s Walkway
Mortar Count: 2
Open
Lower Deer Valley
Mortar Count: 14
Open
Lower Highland Ridge Pond
Mortar Count: 5
Open
Lower Mallory Creek
Mortar Count: 2
Open
Lower North Blue Oak
Mortar Count: 3
Open
Lower Village Overlook
Mortar Count: 2
Open
Lower Village Upper Overlook
Mortar Count: 2
Open
Lower Volvon Village
Mortar Count: 200
Open
Lynch Canyon Monolith
Mortar Count: 10
Open
Lynch Canyon Rancher Petroglyph Rock
Mortar Count: 13
Open
Lynch Canyon Village
Mortar Count: 51
Open
MacDonald Trail
Mortar Count: 1
Open
Macedo Ranch
Mortar Count: 4
Open
Mallory Creek #1
Mortar Count: 2
Open
Mallory Creek #2
Mortar Count: 7
Open
Mallory Creek #3
Mortar Count: 10
Open
Mallory Creek Village
Mortar Count: 45
Open
Mallory Ridge Pond
Mortar Count: 6
Open
Manhattan Trail–Black Diamond Mines
Mortar Count: 1
Open
Manzanita Ridge
Mortar Count: 2
Open
Manzanita Trail
Mortar Count: 11
Open
Martin House Suisun City
Mortar Count: 92
Open
Mid Silva Creek Terrace
Mortar Count: 11
Open
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
Monte Bello Open Space–headwaters of Stevens Creek
Mortar Count: 12
Open
Morgan Territory Ridge East Shelf #1
Mortar Count: 1
Open
Morgan Territory Ridge East Shelf #2
Mortar Count: 1
Open
Morgan Territory Ridge East Shelf #3
Mortar Count: 3
Open
Morgan Territory Ridge Ridge East Overlook
Mortar Count: 3
Open
Murietta Falls
Mortar Count: 3
Open
Murphy Meadow
Mortar Count: 8
Open
Near Intersection of Blue Oak and Miwok Trails
Mortar Count: 5
Open
Near the top of Hog Canyon
Mortar Count: 3
Open
Newell Ranch
Mortar Count: 1
Open
North Fork Lynch Creek
Mortar Count: 1
Open
North Knoll, Chinese Tree of Heaven
Mortar Count: 12
Open
North Morgan Territory Ridge
Mortar Count: 2
Open
North Morgan Territory Ridge Lookout Knob
Mortar Count: 1
Open
North Vargas Plateau
Mortar Count: 2
Open
North Walpert Camp
Mortar Count: 2
Open
North Walpert Lookout
Mortar Count: 2
Open
Nothing There
Mortar Count: 38
Open
Off Marsh Creek Road
Mortar Count: 5
Open
Olompali
Mortar Count: 20
Open
Orestimba
Mortar Count: 73
Open
Pena-Vaca Adobe
Mortar Count: 20
Open
Pine Canyon #1
Mortar Count: 2
Open
Pine Canyon #2
Mortar Count: 1
Open
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
Riggs Canyon Rock Camp
Mortar Count: 113
Open
Ring Mountain kitchen rock
Mortar Count: 1
Open
Rock City
Mortar Count: 13
Open
Rockville Trails Village
Mortar Count: 34
Open
Rockwall to Campsite
Mortar Count: 8
Open
Rocky Ridge
Mortar Count: 10
Open
Round Valley
Mortar Count: 1
Open
Round Valley Village
Mortar Count: 317
Open
Rush Ranch on Grizzly Island
Mortar Count: 25
Open
Ryan’s Hideaway
Mortar Count: 24
Open
Saclan Village
Mortar Count: 8
Open
San Antonio Creek Rock
Mortar Count: 4
Open
Sanborn Creek Village — Saratoga
Mortar Count: 19
Open
SE Mallory Ridge
Mortar Count: 4
Open
Second Terrace
Mortar Count: 20
Open
Siippery Rock at Big Basin
Mortar Count: 8
Open
Silva Creek
Mortar Count: 2
Open
Silva Creek Cave
Mortar Count: 1
Open
Silva/Kellogg Lower
Mortar Count: 2
Open
Silva/Kellogg Upper
Mortar Count: 5
Open
Sindicich Lagoon
Mortar Count: 1
Open
Slick Ridge
Mortar Count: 33
Open
South Blue Oak Trail Ridge
Mortar Count: 1
Open
South Fork Apperson Creek
Mortar Count: 1
Open
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
Stone Corral
Mortar Count: 33
Open
Stonebrae, 16th hole
Mortar Count: 5
Open
Stromer Spring
Mortar Count: 25
Open
Sulphur Spring
Mortar Count: 5
Open
SW Riggs Canyon
Mortar Count: 5
Open
SW Walpert Ceremonial Site
Mortar Count: 22
Open
SW Windy Point
Mortar Count: 9
Open
Swett Ranch
Mortar Count: 16
Open
Third Terrace
Mortar Count: 6
Open
Tolenas Springs Village
Mortar Count: 41
Open
Top ‘o Brushy Peak
Mortar Count: 1
Open
Top of Hog Canyon
Mortar Count: 1
Open
Trail Through Time
Mortar Count: 27
Open
Upper Crow Creek
Mortar Count: 3
Open
Upper East Morgan Territory Ridge
Mortar Count: 6
Open
Upper Fetus
Mortar Count: 5
Open
Upper Homestead Trail Knob site
Mortar Count: 8
Open
Upper Lake at the Alma College site
Mortar Count: 2
Open
Upper Marie Creek
Mortar Count: 25
Open
Upper Marsh Creek Tributary
Mortar Count: 3
Open
Upper Palomares Canyon
Mortar Count: 1
Open
Upper Pond Village Creek
Mortar Count: 10
Open
Upper San Antonio Creek
Mortar Count: 2
Open
Upper San Leandro Reservoir
Mortar Count: 8
Open
Upper Shady Canyon
Mortar Count: 1
Open

Feature: Bedrock Mortars

SwettRanch4

Swett Ranch

Swett Ranch16 bedrock mortarsElevation 372 ft.Looking toward the site.At least one mortar rock has tumbled into the nearby creek.A partially buried mortar rock.The same mortar rock after daylighting.More mortar rocks at this site. It’s easy to make out the single mortar rock, but the multi-mortar rock surface is nearly obscured by shrub branches.We were conducted […]

SLRes

Upper San Leandro Reservoir

Upper San Leandro Reservoir8 bedrock mortars, 3-5 cupules. Site may be underwater.This is a beautiful spot now because of the Upper San Leandro Reservoir, but it was probably nice in Jalquin times too. Back then these mortars were on a little hillside terrace above Kaiser Creek, a perennial watercourse. How many mortars here and how […]

WindOL1

Windmill Overlook, Lower

Windmill Overlook, Lower20 bedrock mortars and several housepits spread along the base of a rock ledge.Elevation 1355 ft.Looking out on the Livermore Valley.Afternoon shadows creep across the land as Bob walks below the rock ledge.A two-mortar rock. Note the elliptical upper section of the funnel mortar.Photograph by Bob Bardell.

BelowCavePointBowls

Below Cave Point

Below Cave Point11 bedrock mortars all one one rock.Think those big holes are geoconcretions? Think again. They are huge bowl mortars. Their side walls bulge out into the surrounding rock in a classic “Olla” shape–the bowl is wider at the side walls than it is at the rim. The bottoms of these bowls are basically […]

CMS2

Canyon Middle School

Canyon Middle School8 bedrock mortars on two rocksElevation 302 ft.Thanks to Joel for discovering this charming site.One of the mortar rocks here sits near the edge of a steep cliff above Crow Canyon Road and the buried Crow Creek.There are beautifully proportioned mortars on this rock.Another beautiful mortar rock sits in a little meadow not […]

DiabloGrandeCave

Diablo Grande Cave

Diablo Grande Cave1 bedrock mortar and a 28 cupule slab8 bedrock mortars in a cave with (obscure) hematite pictographsElevation 1179 ft.Jim photographs the cupule rock. The cupules are hard to make out, so look carefully. That’s the cave (or rock shelter) with bedrock mortars in the background.

GVC1

Green Valley Creek

Green Valley Creek2 bedrock mortars in Green Valley CreekElevation 380 ft.Thank you Rick Hicks.Bob admires the mortars in the creek behind the Fresh and Easy market on Diablo Road. Although it’s the day after small rain storm, there’s an unaccountable amount of water in Green Valley Creek for late October in a drought year.The closely […]

JeffsHideaway

Jeff’s Hideaway

Jeff’s Hideaway4 bedrock mortarsElevation 1550This site on the western scarp of Sunol Ridge is named after the person who turned us on to it. Thanks Jeff!Bob works his way over rocks searching for more mortars. Head down here to cool off on hot days.

LMSHP

Los Meganos State Historic Park

Los Meganos State Historic Park2 bedrock mortars and two anvilsElevation 230 ft.These mortars sit near Briones Creek in the hills behind John Marsh’s house. We wouldn’t have looked for mortars or even hiked here if Joel had not made an initial reconnaissance of this area.Bob looks toward the mountain and its subsidiary peaks. The Briones […]

ChinaWall3

Macedo Ranch

Macedo Ranch4 bedrocks in the saddle of the “China Wall”.1 bedrock mortar and a grinding slick on ridge top above.This site is very near the Volvon/Tatcan tribelet boundary.Bob and Jim approach the China Wall.There are some surprisingly deep bedrock mortars here.A closeup of the deepest mortar. We call mortars with interiors like this “bullet-shaped.”