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Tour of the John W. Keys III Pump-Generating Plant
John W. Keys III Pump Generating Plant Pipes

Tour times:

  • April 1 - May 22: Tours begin at 10 a.m.noon2 p.m.4 p.m.
  • May 23 - September 7:  Tours begin at 10 a.m.11 a.m.noon1 p.m.2 p.m.3 p.m.4 p.m.5 p.m.
  • September 8 -October 31: Tours begin at 10 a.m., noon, 2 p.m., 4 p.m.
02/2014 Guided Tour Map PDF 392 kb
This 50-minute guided tour is free of charge and available only on a first-come, first-served basis. The tour begins at the tour building where you will board a van to be taken to the Pump-Generating Plant. Highlights include a look at the large pumps used for transporting water from Lake Roosevelt to the Columbia Basin Project, concluding with a van ride across the top of the dam. Accessible tours are available with advanced notice by calling (509) 633-9265.

All tour participants are required to pass through a metal detector prior to beginning the tour. Weapons, purses, bags, backpacks, fanny packs, and packages are not permitted on the tour. Cameras, but not camera cases, are allowed on the tour. Onsite storage for personal belongings is not available. Be sure to lock your car. A federally armed security officer will escort all public tours. 

Tour times are subject to change without notice. Please call the Grand Coulee Dam Visitor Center at (509) 633-9265 for the latest information.

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Last Update: March 20, 2015 1:00 PM