Seattle City Light LARRY WEIS, General Manager and CEO
Boundary Dam




Pend Oreille County
web site
Boundary Project
Road trip

The Boundary Hydroelectric Project located on the Pend Oreille River in Northeastern Washington supplies more than one-third of Seattle City Light's power. Discover the Boundary Hydroelectric Project nestled in the foothills of the Selkirk Mountains and positioned along the banks of the scenic Pend Oreille (pronounced "pond-ah-ray") River.

Our 299,000 horsepower turbines and electrical generating facilities produce clean, renewable energy. Schedule a guided tour to experience the Visitors' Gallery located deep inside a massive limestone cavern. Enjoy expansive views at the Vista House and observation deck.

City Light's Boundary Dam in remote Pend Oreille County has plenty available for the recreation-minded visitor. Learn why it's well worth the trip.

See video

Northwest Backroads Boundary Dam video

Boundary Country video

Culture and attractions of Pend Oreille County video

Meet the people of Pend Oreille County video


Tour Information

For a behind-the-scenes look at how Seattle's power is generated; visit the Boundary Hydroelectric Project, located just one mile south of the Canadian border. Boundary Dam's 32 foot thick base arches between two massive rock cliffs.

Free guided group tours are available Memorial Day weekend through Labor Day weekend. Reservations are not required, but groups of 10 or more should call in advance. Contact (509) 446-3083, and press '9' for more information or press ext. #3213 to schedule a tour.

Boundary Project Visitors' Gallery Hours:
Memorial Day weekend to Labor Day weekend
Thursday through Monday
Tours offered at 10:00 a.m. to 4:00 p.m. as needed
Inside Boundary Dam
Gear Up for Adventure!

Enjoy the splendor of Pend Oreille County. The area has an array of sights and activities including fishing, camping, backpacking and horseback riding for outdoor recreational fun. A picnic area, campsites and a boat launch provide access to the clear, sparkling water of the reservoir. See local sights.

If you're a camper, Boundary is a great place to enjoy the water and mountains. The recreational campground is just upstream from the dam and has eight RV sites and 12 non-hookup sites. Services include restrooms with running water (no showers) and a boat ramp providing access to Boundary reservoir. There are additional primitive campsites located near Z Canyon, which are only accessible by water. There is a limited six-day stay. No Discover Pass is required for parking.

There is no charge for the facilities but availability is on a first-come basis and reservations are not taken. RV sanitation dump facilities and boat moorage are not available.

Forging Partnerships with Local Business

Seattle City Light is one of the area's largest employers. The utility won the "National Eyes on Wildlife Award" for teaming up with the Colville National Forest to assist in the development of Flume Creek Mountain Goat Viewing Area. Seattle City Light manages the Boundary Project and five other hydroelectric dams in Washington State, providing the lowest cost, most reliable and greenest electricity in urban America.

Security Note: With heightened security concerns, access may be limited. Photo ID is required for all adults and some areas of the project are restricted.

For more information about Boundary Tours, please email or call (509) 446-3083.

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