Canyon Milling site
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Canyon Milling site

Canyon Milling site
Twenty-nine bedrock mortars, three probable bedrock-mortars.
Ten small mortars on one rock could be considered cupules.
Elevation 1477 ft.

Our name for this site comes from Table 1 of the 1992 report Evaluation, Request for Determination of Eligibility, and Effect for the Los Vaqueros Project.

A partial view of the site.

Photograph by Bob Bardell

A closer look at some of the mortars.


Bob judges whether a potential mortar seems worked by feeling the inner surface of the hole.


A close up of two shallow, cone-shaped mortars probably used for pounding acorns.


This piece of obsidian may have been a tool–possibly a Stockton Crescent. It was recovered from one of the shallow mortars pictured above, removed from the site, and properly curated by a licensed collector.


Several mortar rocks lie about 150′ to the northwest, closer to the creek.

It’s hard to make out the small mortars/cupules, but they are there. Does their geometric arrangement mean anything?


Previous two photographs by Bob Bardell.

We believe the trinomial for this site is CA-CCO-555.