B Reactor at the Manhattan Project National Historical Park
The story of the B Reactor includes some of the richest and most significant scientific accomplishments in the world.
The Ice Age Floods
The Tri-Cities region was shaped by a series of cataclysmic floods at the end of the last Ice Age, known as the Missoula Floods or Ice Age Floods. Over 13,000 years ago, ice dams repeatedly burst, releasing torrents of water that scoured the landscape, carving deep channels, eroding rock formations, and depositing massive boulders across the Columbia Basin. These floods played a crucial role in forming the dramatic terrain seen today, including the Columbia River Gorge, the Channeled Scablands, and the unique basalt formations throughout the region.
Today, visitors can explore this fascinating history at destinations like the Columbia River’s Wallula Gap, the White Bluffs, and the breathtaking Palouse Falls. Discover the story of geologist J Harlen Bretz, who first proposed this once-controversial theory, by visiting the REACH Museum, where interactive exhibits bring the region’s Ice Age past to life. See the evidence for yourself through scenic drives, hiking trails, and interpretive sites across the Tri-Cities.
Expand Your Mind In Tri-Cities
Exploration Center at LIGO (LExC)
The Laser Interferometer Gravitational-Wave Observatory (LIGO) is renowned for its landmark discovery of gravitational waves, cosmic ripples in space-time produced…
REACH Museum
Explore The REACH Museum, where you'll find a wealth of interactive exhibits, engaging educational programs, and exciting seasonal events that…
Sacajawea Historical State Park & Interpretive Center
The Sacajawea Historical State Park & Interpretive Center uses the popular spelling of Sacajawea – multiple spellings of the Indian…
Aviation Museum
The Pasco Aviation Museum is housed in the historic Navy Control Tower Building in Pasco.
CPCCo Planetarium
Unravel the mysteries of our universe at the CPCCo Planetarium located in the heart of the Columbia Basin College campus.
The Museum at Keewaydin
Located in Kennewick's oldest park and home to their world-famous petrified wood floor, The Museum at Keewaydin (formerly the East…
Franklin County Historical Museum
In 1983, after over two years of painstaking renovation, the Franklin County Historical Society & Museum moved into the historic…
USS Triton Sail Park
Don’t miss the opportunity to visit a real submarine sail. In 1960, USS Triton was the first submarine to circle…