Above Mission Peak Meadow
Mortar Count: 2
Open
Blue Rock Springs Park — North
Blue Rock Springs Park — South
Chinese Tree of Heaven
Mortar Count: 18
Open
Los Vaqueros Log Cabin Village
Mortar Count: 60
Open
Mid-Walpert Village
Mortar Count: 32
Open
North Knoll, Chinese Tree of Heaven
Mortar Count: 12
Open
Observation Hill
Rockville Trails Village
Mortar Count: 34
Open
Rocky Ridge
Mortar Count: 10
Open
South Mission Peak
Southern Rocky Ridge
Mortar Count: 14
Open
Stone Corral
Mortar Count: 33
Open
Sunol Ridge, North of Prayer Circle
Sunol Ridge, South of Prayer Circle
Volmer Peak Rock Wall
Walpert Ridge Lookout
Mortar Count: 19
Open
White Hill

Feature: Rock Wall

RockyRidgePestle

Rocky Ridge

Rocky Ridge10 bedrock mortars along an inspirational ridge line.Rock wall alignment.Elevation 1960 ft.Forget the bedrock mortars and rock wall. Hike up to Rocky Ridge for the views. Sunsets are particularly recommended.Looking south from near the headwaters of Kaiser Creek.A big chunk of the San Leandro Creek watershed spreads out to the west below the ridge.This […]

S-Mission-Peak-Rock-Wall1

South Mission Peak

South Mission PeakRock wall on the ridge between Mt. Allison and Mission Peak. Origin unknown.Many rock walls stand on the ridges and slopes between Mission Peak and Monument Peak (located just north of Ed Levin Park). Fly south from this site in Google Earth. Zoom in for a closer look. The walls are there all […]

MPM2

Above Mission Peak Meadow

Above Mission Peak MeadowTwo probable bedrock mortars, one pestle, rock alignments.Elevation 1761 ft.Jeff discovered these mortars a long time ago. We looked and looked but couldn’t locate them. Recently Jeff led an expedition here. The mortars look like they could have formed from rain or fog drip, but Doc Hale, our resident expert, gave them […]

RockyRidgeSouth

Southern Rocky Ridge

Southern Rocky Ridge14 bedrock mortars and a rock wall at the top of Crow Creek.Like the Rocky Ridge site, this one is near a probable tribelet boundary.A single track path passes through a rock alignment on the way to this site.

Blue Rock Springs Park — North

Blue Rock Springs Park — North Rock wall Elevation 695 ft. This wall reminds us of similar alignments on Mission Peak and in the South Bay. It runs, with breaks, nearly all the way to I-80. The barbed wire fence and rock wall coincide with each other. Were they constructed at the same time? Compare […]

LynxRufus

Stone Corral

Stone Corral33 bedrock mortars, prayer circle, 2 sets of double cupules, rock wall alignments, and hunting blinds.Elevation 1800 ft.What kind of animals would be constrained by this corral? We believe the stone corral was the site of Indian games and/or ceremonies. HIke up the ridge to the west and find the spot where you have […]

Blue Rock Springs Park — South

Blue Rock Springs Park — South Curved Rock Alignment Elevation 520 ft. This alignment extends along the north and east sides of a little knoll at the bottom of valley. Who constructed it and why? A closer look. The knoll is flat on top. A detail shot showing the stacking.

SunolRidgeNorthRockWall

Sunol Ridge, North of Prayer Circle

Sunol Ridge, North of Prayer CircleRock wall and possible cairnElevation 1797 ft.Bob heads down along the rock wall to inspect the possible cairn, which sits at the top of the watercourse that flows past the Prayer Circle.This site may be on private property. One should secure permission before visiting it.

CTH5

Chinese Tree of Heaven

Chinese Tree of Heaven18 bedrock mortars (including 5 bowl mortars), 3 metates, 2 cupules, incised rocks, rock rectangles, rock walls, and rock-lined pathwaysThe Chinese Tree of Heaven tree (Ailanthus altissima) was introduced to California by the Chinese during the Gold Rush. The presence of this tree along with the dry-laid masonry skill apparent in a […]

JeffsWall

Sunol Ridge, South of Prayer Circle

Sunol Ridge, South of Prayer CircleRock WallElevation 1711 ft.Part of this wall covers a seasonal stream bed. Look for a stone seat at the wall’s highest point.A section of this wall lies on private property. One should secure permission before visiting it.