Upper Lone Tree Valley – Antioch

Upper Lone Tree Valley

33 bedrock mortar site in the rolling hills of Upper Lone Tree Valley, Antioch.

Enter near the entrance to Contra Loma Regional Park.


Take the Stewartville Trail for a nice 45 minute walk.


Meander up the spine of this colorful rock outcrop.


12 of the mortars are tucked into this little nook on the spine.


This rock right below holds several more mortars.


Some one left this fine pestle there. The indentation is for your thumb. We left it there. You should too.


The numbers indicate our current bedrock mortar count at each of these important remaining sites.

To view our complete Bay Area GoogleEarth Native American Indian Site map
just go to www.eastbayhillpeople.com/Map and start clicking.