ALA-60 at Crow Canyon Road and Castro Valley Boulevard
Mortar Count: 44
Open
Canyon Middle School
Mortar Count: 8
Open
Chinese Tree of Heaven
Mortar Count: 18
Open
Garin Park, east spur
Mortar Count: 2
Open
Garin, single morta
Mortar Count: 1
Open
Gossip Rock
Mortar Count: 5
Open
Hill 1424
Mortar Count: 4
Open
Jalquin Vista Park
Mortar Count: 16
Open
Mid-Walpert Village
Mortar Count: 32
Open
North Knoll, Chinese Tree of Heaven
Mortar Count: 12
Open
North Walpert Camp
Mortar Count: 2
Open
North Walpert Lookout
Mortar Count: 2
Open
Rockwall to Campsite
Mortar Count: 8
Open
Ryan’s Hideaway
Mortar Count: 24
Open
South of Prayer Circle
Mortar Count: 1
Open
Stonebrae, 16th hole
Mortar Count: 5
Open
SW Walpert Ceremonial Site
Mortar Count: 22
Open
Upper Palomares Canyon
Mortar Count: 1
Open
Upper Shady Canyon
Mortar Count: 1
Open
Upper Ukraina
Mortar Count: 29
Open
Walpert Ridge Lookout
Mortar Count: 19
Open

Territory: Yrgin

The Yrgin, an Ohlone tribelet, controlled the San Lorenzo Creek watershed on the east side of San Francisco Bay. Yrgin territory included the present day cities of Hayward and Castro Valley and extended from the bayshore to the heights of Walpert Ridge. Walpert Ridge gives every indication of being a religious/ceremonial center. Rock walls, rectangles, prayer circles, and other features are scattered across Walpert’s “high country.” We have no clue as to what, if anything, went on there, but we do know that Walpert Ridge possesses extensive views that encompass much of the central and south Bay Area. This is a place, like Mt. Diablo, where one can have the sense of being on top of the world, looking out over creation.

Some of the sites on Walpert Ridge are owned by the East Bay Regional Park District but held in “land bank” status. Others are on land held by private owners. One should secure permission before visiting any of them.

Randall Milliken suggests in A Time of Little Choice that the Yrgin and the Jalquin may have been the same people. He does not represent this possibility on his tribelet maps in Native American History Studies for the Los Vaqueros Project: A Synthesis, which we follow here.

AgapiusGrafitti

Gossip Rock

Gossip Rock5 bedrock mortars, possible cupules and incisions.This is one of the rare archaeological sites identified by East Bay Regional Parks. It’s listed right there on the map for Garin/Dry Creek Pioneer Park. Be sure to sit here for a while. Enjoy the south-facing rock and the view of Mission Peak.Jim studies a mortar on […]