The Seunen, an Ohlone tribelet, held the rugged hills north of Interstate 580 between the San Leandro Reservoir and the San Ramon Valley. They held part of Rocky Ridge, but none of Las Trampas Ridge. Eden Canyon Creek and the sections of Cull and Crow Creeks above their mutual confluence were the Seunen’s principal water sources.
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.
Upper Crow Creek3 bedrock mortars and a PCN.This sure looks like a Pecked Curvilinear Nucleated petroglyph to us. If it is, does that mean this site had some special significance?