Stewartville Hydro Opening on Madawaska River in Ontario: various LSs of dam. Closer shot of details. Interior shots of Stewartville generating station, group of men walking about. Exterior shot of people arriving by car, Robert Saunders, Ontario Premier Leslie M. Frost and others, shaking hands, chatting. Interior shot of power house, ceremony in progress. HASs of crowd, speakers on platform. Shot of Frost doing speech, young boy standing at his side, and official opening as boy presses button. Shot of one of the dynamos, sign in lights "Hydro", Union Jack flags flying from railing. Shots of dam seen from downstream, from top of dam and from upstream.