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.

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Volvon Village on Mallory Creek

Volvon Village on Mallory Creek 715 bedrock mortars and countless housepits spread over a half mile. Cupule rock. This village, located in the highlands of the Black Hills, must have been one of the largest settlements in the prehistoric Bay Area, yet it was, apparently, unknown to early archaeologists and historians. It does not appear […]

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Blue Oak Trail

Blue Oak Trail16 bedrock mortars above Blue Oak Trail.This is a sweet campsite with a secluded feel even though it’s right above Blue Oak Trail and a stone’s throw from the Lion’s Mane Village.The bowl mortar here is about the size and shape of a small mixing bowl–8 1/2″ in diameter–and a little over 6″ […]

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Joel’s Rockspring Cave

Joel’s Rockspring CaveTwo bedrock mortars in a rock shelter overlooking a seasonal creek.Elevation 467 ft.Joel discovered this very cool rock shelter not far from the Rockspring Place trail head in Walnut Creek’s Shell Ridge Open Space. The cave can be reached by an easy hike and would be a great place to hang out with […]

Morgan Territory Ridge East Shelf #2

Morgan Territory Ridge East Shelf #2One bedrock mortar.Elevation 1550 ft.This is a big, deep, battered mortar.

Top-of-Hog-Canyon

Top of Hog Canyon

Top of Hog Canyon1 bedrock mortar and slick.

Curry-Creek-milling-station

Curry Creek Milling Station

Curry Creek Milling Station.18 bedrock mortar milling station on a side creek; leaching slick in the creek.The huge bowls found here are like no others we’ve discovered in the East Bay hills. They are deep and wide and have bullet-shaped mortars in their bottoms. Deep cone-shaped mortars with unusually large oval mouths also appear here. […]

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Lower Deer Valley

Lower Deer Valley14 bedrock mortars.Elevation 495 ft.Way to go Jaime!Looking at the site. The mortar rocks in this little camp lie just off the Stewartville Trail near Sand Creek in Black Diamond Mines Regional Park.Bob looks down at one of the mortar rocks.These bullet-shaped mortars are deep and reminiscent of the ones found at China […]

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Pine Canyon #2

Pine Canyon #2One bedrock mortar in a charming creekside setting below Castle Rock.Elevation 489 ft.Thanks to Richard for conducting us to this site and leading us through the “back door” to Castle Rock.Bob and Richard examine the mortar.A closeup of the mortar.

Whelk-Pond

Whelk Pond

Whelk Pond5 bedrock mortars and leaching station.The creek here flows down into Round Valley past the village site there and eventually empties into Marsh Creek.The Whelk Pond itself. Keep your eyes peeled for freshwater whelk here and in the stream.Look for mortars in the creek.

Hematite

Hematite Processing Site

Hematite Processing Site12 bedrock mortars at Holy Names College.Hematite was processed and quarried here. It was often burned, which produced brighter reds, and then leached to remove salts and soften the rock. After that it was ground to a powder.Closeup of a chunk of hematite. Subtle processing differences produced different hues of red ochre.This may […]