a large lake
... that a large lake formerly covered California's Death Valley, and occasionally reappears?
... that <b id="mwAcg"><a href="./Lake_Manly" id="mwAck" rel="mw:WikiLink" title="Lake Manly">a large lake</a></b> formerly covered California's <a href="./Death_Valley" id="mwAco" rel="mw:WikiLink" title="Death Valley">Death Valley</a>, and occasionally reappears?