Volvon Village on Mallory Creek
Mortar Count: 715
Open
Above Condor/Coyote Trails
Mortar Count: 5
Open
ALA-481
Mortar Count: 2
Open
Below Cave Point
Mortar Count: 11
Open
Below Jamie’s Knob
Mortar Count: 4
Open
Below Knobcone Point Road
Mortar Count: 21
Open
Below Rock City
Mortar Count: 12
Open
Black Hills Trail
Mortar Count: 3
Open
Blaisdell Trail Alignment
Blue Oak Trail
Mortar Count: 16
Open
Bob Walker’s Cave
Mortar Count: 1
Open
Bob’s Mortar
Mortar Count: 75
Open
Briones Valley
Mortar Count: 2
Open
Camp Confluence
Mortar Count: 1
Open
Canyon Milling site
Mortar Count: 29
Open
Cistern Bath
Mortar Count: 1
Open
Clayton Ranch
Clayton Ranch Alignment
Condor/Coyote Trails
Mortar Count: 2
Open
Coyote Trail below reservoir
Mortar Count: 7
Open
Curry Creek Milling Station
Mortar Count: 18
Open
Curry Point Prayer Circle
Donner Creek
Mortar Count: 2
Open
Downstream from the Whelk Pond
Mortar Count: 1
Open
Elephant Rock
Mortar Count: 1
Open
Fallen Oak Village
Mortar Count: 46
Open
Fig Pig Gulch Meadow
Mortar Count: 19
Open
Founders Ridge
Mortar Count: 3
Open
Green Valley Creek
Mortar Count: 2
Open
Green’s Village in Fig Pig Gulch
Mortar Count: 75
Open
Greenhill Ranch, aka The Green Ranch
Hematite Processing Site
Mortar Count: 12
Open
Hematite Quarry
Highland Ridge Lookout
Mortar Count: 1
Open
Hog Canyon
Mortar Count: 7
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
Jamie’s Knob
Mortar Count: 13
Open
Jan Enderle Village
Mortar Count: 35
Open
Joel’s Rockspring Cave
Mortar Count: 2
Open
Joel’s Straggler
Mortar Count: 1
Open
Keller Ranch
Mortar Count: 2
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
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 berry grinding slick with one cupule
Manzanita Ridge
Mortar Count: 2
Open
Manzanita slick
Manzanita Trail
Mortar Count: 11
Open
Mid Silva Creek Terrace
Mortar Count: 11
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
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
North Morgan Territory Ridge
Mortar Count: 2
Open
North Morgan Territory Ridge Lookout Knob
Mortar Count: 1
Open
Nothing There
Mortar Count: 38
Open
Off Marsh Creek Road
Mortar Count: 5
Open
Pine Canyon #1
Mortar Count: 2
Open
Pine Canyon #2
Mortar Count: 1
Open
Prayer Ridge
Riggs Canyon Rock Camp
Mortar Count: 113
Open
Rock City
Mortar Count: 13
Open
Rocky Ridge
Mortar Count: 10
Open
Round Valley
Mortar Count: 1
Open
Round Valley Village
Mortar Count: 317
Open
Saclan Village
Mortar Count: 8
Open
SE Mallory Ridge
Mortar Count: 4
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
Stone Corral
Mortar Count: 33
Open
SW Riggs Canyon
Mortar Count: 5
Open
SW Windy Point
Mortar Count: 9
Open
Tao House Grooved Rock
The Toad
Top of Hog Canyon
Mortar Count: 1
Open
Trail Through Time
Mortar Count: 27
Open
Upper East Morgan Territory Ridge
Mortar Count: 6
Open
Upper Homestead Trail Knob site
Mortar Count: 8
Open
Upper Marsh Creek Tributary
Mortar Count: 3
Open
Upper Pond Village Creek
Mortar Count: 10
Open
Upper San Leandro Reservoir
Mortar Count: 8
Open
Upper Whipsnake Trail
Mortar Count: 2
Open
Volmer Peak Rock Wall
Volvon Overlook
Mortar Count: 3
Open
Whelk Lookout
Mortar Count: 2
Open
Whelk Pond
Mortar Count: 5
Open
Willow Park Golf Course
Mortar Count: 10
Open
Windy Point
Mortar Count: 9
Open

Territory: Bay Miwok

Speakers of Bay Miwok dialects occupied most of the area of Contra Costa County not bordering San Francisco or San Pablo bays. The territory of one Bay Miwok tribe, the Jalquin, may have extended into Alameda county and touched San Francisco bay at the mouth of San Leandro Creek.

BrushyPeakFromNothingThere

Nothing There

Nothing There38 bedrock mortars and several housepitsElevation 1280 ft.“There’s nothing there,” said Doc Hale, but even a Master can be wrong. We believe this is the southernmost settlement in Volvon territory. It is just off the Black Hills Trail, which probably traces the main Indian trail between Volvon Village and Brushy Peak, and is perched […]

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 […]

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.”

SEMR

SE Mallory Ridge

SE Mallory Ridge4 bedrock mortars, 2 possible metatesElevation 1867 ft.Doc Hale says the holes at this site are real mortars, not geoconcretions. That’s good enough for us.

Black-Hills-Trail-Possible-PCN

Black Hills Trail

Black Hills Trail.Three bedrock mortars, a possible PCN, and a slick.Elevation 1520 ft.Pecked curvilinear nucleated petroglyphs are not supposed to occur in Contra Costa County.We’re not so sure.

JaimesKnob3

Jamie’s Knob

Jamie’s Knob13 bedrock mortars.Elevation 445 ft.Thanks to Jaime for turning us on to this great site. It’s just a short 20 minute walk from the end of Snyder Lane. When you go through the gate onto park land take the left-hand, single-track trail. This path conveys you to a private drive bordered by a public […]

MSCT3

Mid Silva Creek Terrace

Mid Silva Creek Terrace11 bedrock mortarsElevation 1101 ft.Thanks to Joel for discovering this beautiful, protected site.Looking down on the site with Los Vaqueros Reservoir in the background. Beyond the hills of the Vasco lies the San Joaquin Valley and the Sierra Nevada.Looking into the site.The mortars are strung out on a terrace along the creek.A […]

TaoHouseRock

Tao House Grooved Rock

Tao House Grooved RockThis site is named for Eugene O’Neill’s nearby Tao House–a National Historic site.This rock sits all by itself in the middle of a big field on the side of Las Trampas Ridge. Across the San Ramon Valley to the east looms Mt. Diablo. The grooves in the rock are straight and of […]

CondorCoyoteTrail

Condor/Coyote Trails

Condor/Coyote Trails2 bedrock mortars on a small hill below the reservoir.There are two cone-shaped mortars at this little campsite. The second is nearby, under the trees.