The B Reactor National Historic Landmark at the Hanford Site in southeastern Washington state was the world’s first full-scale plutonium production reactor. Created as part of the top-secret Manhattan Project during World War II, B Reactor produced plutonium used in the Trinity Test, and in the atomic bomb dropped on Nagasaki, Japan to end World War II. The reactor was designed and built by the DuPont company based on experimental designs tested by Dr. Enrico Fermi at the University of Chicago and tests from the X-10 Graphite Reactor at Oak Ridge, Tennessee.
Construction of B Reactor began in October 1943. Fuel was loaded into the reactor on Sept. 13, 1944, and it reached full power in February 1945.
Tri-Cities 2023 Geocoin Challenge
Tales of the Tri-Cities
- Complete all 4 Adventure Labs and find 4 event geocaches in each city (16 out of 20 traditional geocaches).
- Return completed passport: John Dam Plaza: ~ Sat, June 24, 3-7pm & Sun, June 25, 9am-12pm
- After Sunday, June 25 @ 2 pm, return the completed passport to Richland Parks & Recreation
- Richland Parks & Rec: N46 16.369 W119 16.273 ~ Mon-Fri 8am-9pm, Sat 9am-8pm, Sun 12-4pm
- Cache questions: call 509.578.9332
- Passport must be in one piece, not torn or mutilated.
- Coins available while supplies last.
- Passports available at John Dam Plaza on Saturday, June 24, after 9:30am.
EVENT GEOCOIN CHALLENGE PASSPORT (Link goes live: 6/24 – 11am)
Kid Challenge
- Find 10 out of the 20 event geocaches throughout the Tri-Cities.
- All the geocaches have 3D rubs.
- Complete the Kid’s Passport.
KIDS GEOCOIN CHALLENGE PASSPORT (Link goes live: 6/24 – 11am)