East English River Provincial Park
... that the English River within the East English River Provincial Park has no regulated flow and no pollution, unique in northwestern Ontario?
... that the <a href="./English_River_(Ontario)" id="mwBlY" rel="mw:WikiLink" title="English River (Ontario)">English River</a> within the <b id="mwBlc"><a href="./East_English_River_Provincial_Park" id="mwBlg" rel="mw:WikiLink" title="East English River Provincial Park">East English River Provincial Park</a></b> has no regulated flow and no pollution, unique in <a href="./Northwestern_Ontario" id="mwBlk" rel="mw:WikiLink" title="Northwestern Ontario">northwestern Ontario</a>?