Sisquoc Formation
... that the Sisquoc Formation in Southern California supports the largest diatomite mining operation in the world?
... that the <b id="mwBXY"><a href="./Sisquoc_Formation" id="mwBXc" rel="mw:WikiLink" title="Sisquoc Formation">Sisquoc Formation</a></b> in <a href="./Southern_California" id="mwBXg" rel="mw:WikiLink" title="Southern California">Southern California</a> supports the largest <a href="./Diatomaceous_earth" id="mwBXk" rel="mw:WikiLink" title="Diatomaceous earth">diatomite</a> <a href="./Mining" id="mwBXo" rel="mw:WikiLink" title="Mining">mining</a> operation in the world?