The main Indian artifacts found on our ranch are grinding rocks where the Ohlone Indians ground acorns and other edible seeds into meal or flour.
The sites we’ve found are always near or on the top edge of a ridge with a view. The sites always have large rock outcroppings with flat areas large enough for several people to sit together and there is always shade.
Whenever we go to one of these sites it’s easy to see why they were selected. The view raises one’s spirit and the shade protects the grinder from the hot sun.
There is usually a spring near by. Sometimes these sites are quite large and it appears that the Ohlones may have had an entire camp in the immediate area.
The largest site I’ve seen was overlooking La Costa Creek on the south side of Rowell Ridge. The rock outcrop there is so large that the drop off from the edge of the ledge is straight down for over 100 feet.
This past weekend we found a site that I had not seen before. It has at least five ginding holes. The site is on the north side of Rowell Ridge and has a commanding view of the Livermore Valley, Mount Diablo, Brushy Peak and the Black Hills.
We found five wholes. Here they are.
I guess you could say, “When you’ve seen one you’ve seen them all.” Keep in mind that there are other critters that seek out the same sites.