With a generating capacity of 480,000 horsepower, the huge Des Joachims development on the Ottawa river is designed to turn southern Ontario into a po(...)

Original Toronto Star caption: With a generating capacity of 480;000 horsepower; the huge Des Joachims development on the Ottawa river is designed to turn southern Ontario into a power-prosperous area by 1951; Right; two workers in action. Below; a dam under construction at Des Joachims.