Orinda Formation

The Orinda Formation is a Pliocene epoch geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California. It is found within Alameda County and Contra Costa County.

Orinda Formation

The Orinda Formation is a Pliocene epoch geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California. It is found within Alameda County and Contra Costa County.