A historic Coast Miwok settlement on the western shore of Tomales Bay has again been vandalized, and the leading advocate for the site says the incidents underscore the need to restore and better interpret it.

Theresa Harlan, a Vallejo resident who was adopted into the Coast Miwok family that lived at Lairds Landing for generations, discovered the vandalism in late May. Plywood covering the central cabin at the cove—which she has dubbed Felix Cove, after…