Long Canyon and Marsh Creek Brentwood

53 bedrock mortars, 29 on one rock.

The location of this site near the mouth of Hog Canyon meant that this was a “gatehouse” settlement guarding one of the principal routes into the Volvon heartland. This was one of the very few bedrock mortar sites known to early 20th century Contra Costa County historians.

This site is just off Marsh Creek Road on private property. Be respectful.

Yes. It’s right there.

Long Canyon

We think a nice little village was located in the meadow right below.


How old is this ancient site?



A handsome mortar plug, peeled back.


Another bunch of mortars down in Marsh Creek.

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The Volvon Tribe ruled this area for 10’s of centuries.

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For more information and directions to our GoogleEarth kmz map

with photos and descriptions of every site www.eastbayhillpeople.com/map