Volvon Village on Mallory Creek
Mortar Count: 715
Open
Upper Whipsnake Trail
Mortar Count: 2
Open
Volmer Peak Rock Wall
Volvon Overlook
Mortar Count: 3
Open
Above Condor/Coyote Trails
Mortar Count: 5
Open
Whelk Lookout
Mortar Count: 2
Open
ALA-481
Mortar Count: 2
Open
Whelk Pond
Mortar Count: 5
Open
Willow Park Golf Course
Mortar Count: 10
Open
Below Cave Point
Mortar Count: 11
Open
Below Jamie’s Knob
Mortar Count: 4
Open
Below Knobcone Point Road
Mortar Count: 21
Open
Windy Point
Mortar Count: 9
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

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.

JoelsStraggler1

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 […]

LowerVillageNipple

Lower Volvon Village

Lower Volvon Village200 bedrock mortars and a 32 cupule rock. A second cupule rock also at the site. Numerous housepits.Elevation 1445 ft.This is one of the largest collections of bedrock mortars in California, and it is only about a mile and a half away from the main Volvon Village.The Lower Village sits on the side […]

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.

RoundValley5

Round Valley Village

Round Valley Village317+ bedrock mortars, two cupule rocks, and a stacked rock enclosure.CA-CCO-320This settlement is the largest of three that sit along the eastern base of the Black Hills.Joseph Chartkoff in “A Rock Feature Complex from Northwestern California,” American Antiquity, Vol. 48, No. 4, (Oct., 1983), pp. 745-760, notes the similarity between this stacked-rock enclosure […]

TTT

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.

Bobs-Mortar-P1010185

Bob’s Mortar

Bob’s Mortar75 bedrock mortars, including 9 in a satelilte site about 100 ft. awayElevation 1380 ft.This site was named for the first mortar Bob discovered on his own. It is a single large bowl on a rock right beside the trail. Below the rock a small perennial spring or seep dribbles water into a creek […]

FR1

Founders Ridge

Founders Ridge2 bedrock mortars and 1 broken mortarElevation 2498 ft.We’ve walked along this ridge a bunch of times, but we weren’t checking out the rocks with Jeff’s sharp eyes.Looking east with the main mortar rock in the foreground. We could see the snow-capped Sierra in the distance. Unfortunately, this picture didn’t capture the view.These are […]

keller1

Keller Ranch

Keller RanchTwo portable stone mortars incorporated into the ranch house foundation, which was constructed on an extensive midden deposit.Elevation 393 ft.A major Chupcan village occupied this area at the confluence of Donner, Mitchell, and Diablo Creeks.One of the portable mortars in the ranch house foundation.Obsidian debitage picked up from the ground surface around the ranch […]

MacDonaldTrail

MacDonald Trail

MacDonald Trail1 probable bedrock mortarElevation 1118 ft.This probable mortar is just below a rock formation that could have functioned as a hunting blind, in our opinion.

MalloryRidgeEastOverlook

Morgan Territory Ridge Ridge East Overlook

Morgan Territory Ridge Ridge East Overlook3 bedrock mortarsElevation 1985 ft.The mortars here may represent an exploitation of geoconcretions.