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 […]

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 […]

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Mallory Creek #3

Mallory Creek #3Near the confluence of Mallory and Kellogg Creeks.10 bedrock mortars and an 8 cupule rock in the creek.Elevation 495 ft.Portions of this site may be inundated by the new high water level of Los Vaqueros Reservoir.Kellog Creek flows below us on its meander to the Delta, but instead of flowing steadily downward through […]

SilvaKelloggLower

Silva/Kellogg Lower

Silva/Kellogg Lower1 bowl mortar, 1 broken mortar, 3 starters/cupules.Elevation 531 ft.This site may be inundated when the enlarged Los Vaqueros reservoir reaches its highest water level.Bob measures the bowl mortar.We believe the trinomial for this site is CA-CCO-452.

BWC

Bob Walker’s Cave

Bob Walker’s Cave1 bedrock mortar, rock shelter, stacked rocksElevation 2147 ft.The late Bob Walker was an environmentalist, photographer, and president of the San Francisco Bay Chapter of the Sierra Club. During his tenure there he pushed for the expansion of Morgan Territory Regional Preserve and saw its acreage increase from 970 to more than 5,000 […]

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Joel’s Straggler

Joel’s StragglerOne bedrock mortar beside Round Valley Creek not far from its confluence with Marsh CreekElevation 245 ft.This mortar rock is less than 100 yards from the main trail into Round Valley. Absent Joel’s curiosity and keen eye, it might have remained unknown to us for years, or even forever. Indians were everywhere, folks. Just […]

BelowSwede

Morgan Territory Ridge East Shelf #3

Morgan Territory Ridge East Shelf #3Three bedrock mortars.Elevation 1560 ft.We discovered this beautiful funnel-shaped mortar in late Fall 2013.We also found this nice two mortar rock across the swale from the single mortar shown above.

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Trail Through Time

Trail Through Time27 bedrock mortars near a wayside exhibit along the Trail Through Time.Elevation 1665 ft.There are serious kitchen rocks here.A nice little exhibit with a map to most of the bedrock mortars at this site.

CurryPointTsektsel

Curry Point Prayer Circle

Curry Point Prayer CircleProbable prayer circle.Elevation 1778 ft.The location of this probable prayer circle is a compelling one. Mt. Diablo swallows up the view to the north. To the east, across the great valley, rise the Sierra Nevada–visible on a clear day. To the south and west lie the East Bay hills.Bob channels the spirits […]

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Lower Highland Ridge Pond

Lower Highland Ridge PondFive bedrock mortars: On one rock: 2 semi-conical bedrock mortars, 1 of which is deep, one definite broken mortar and one possible broken mortar; 2 conical bedrock mortars on a rock slab in the creek west of the pond.Elevation 2065 ft.A view of the mortar rock and the nearby pond. This is […]