Revelstoke Dam is one of four dams on the Columbia River in British Columbia. A fifth penstock turbine was recently added adjacent to the original four shown here (the long tubes on the front face of the dam), giving the dam a generating capacity of around 2500 megawatts. The sixth penstock may be installed and operational by 2019, making this the most powerful dam in British Columbia.
© North Light Images/AGE Fotostock