sentences:  The line began service on July 17, 1909, conveying power from the 10 MW Shoshone Hydroelectric Generating Station, outside of Glenwood Springs to Denver, serving substations in Leadville, Dillon and Idaho Springs.At the east end of the line, it was connected to the utility's Boulder Canyon Hydroelectric Plant powered from the Barker Meadow Reservoir.In the event of a break in the line, either power plant could supply customers along the line.