Rancho past fire Updated October 1, 2026 at 8:55 PM PDT ACRES BURNED 7 STATE California → ORIGIN COUNTY Contra Costa CONTAINMENT 100% Response LEAD AGENCY CAL FIRE Details Undetermined According to NIFC, the cause is still undetermined INCIDENT DETAILS DESCRIPTION Rancho La Boca Road, Briones Regional Park OVERVIEW Rancho Fire started on 10/01 and is currently at 7 acres and 100% containment.
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