Gull River
... that the Gull River system of reservoirs in Ontario controls the water levels of the Trent-Severn Canal, although they were not originally created for this purpose?
... that the <b id="mwDMs"><a href="./Gull_River_(Balsam_Lake)" id="mwDMw" rel="mw:WikiLink" title="Gull River (Balsam Lake)">Gull River</a></b> system of <a href="./Lake" id="mwDM0" rel="mw:WikiLink" title="Lake">reservoirs</a> in Ontario controls the water levels of the <a class="mw-redirect" href="./Trent-Severn_Waterway" id="mwDM4" rel="mw:WikiLink" title="Trent-Severn Waterway">Trent-Severn Canal</a>, although they were not originally created for this purpose?