Tour of the John W. Keys III Pump-Generating Plant
September 4 — September 30: 10 a.m., 12 p.m., 2 p.m., and 4 p.m. daily.
October 1 – October 31: 10 a.m., 12 p.m., 2 p.m., 3:30 p.m. daily.
This 50-minute guided tour is free of charge and available only on a first-come, first-served basis. Seating is limited. Groups should call (509) 633-9265 at least 15 days prior to their visit. Download the tour map >>.
The tour begins at the tour building where you will board a van or bus 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 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.
Tour times are subject to change without notice. Please call the Grand Coulee Dam Visitor Center at (509) 633-9265 for the latest information.
Grand Coulee Visitor Center