In 1941, it was the largest hydroelectric power producing facility in the world. Learn how tension between technological success and environmental impact hangs over the dam. (Also at midnight; Sun.

The day before September 11, 2001, visitors were driving across the Columbia River in one of the most dramatic locations one can imagine – atop the 550-foot spillway of Grand Coulee Dam, a marvel to ...

"Look at the beautiful lights on there," said Lisa as her family watched the show Thursday night. "I used to watch that when I was a little girl." As the Lancaster family braved the cold weather, they ...