B Reactor overview
B Reactor
One of the main reasons to visit the B Reactor is to learn about the development of atomic energy and its impact on the world. The reactor is one of the few remaining sites from the Manhattan Project and offers a rare opportunity to see the technology that changed the course of human history.
Visitors to the B Reactor can take guided tours of the site, which provide an in-depth look at the facility and its history. Tour guides are knowledgeable about the reactor and can answer questions about the science and engineering behind the technology.
One unique thing visitors may see at the B Reactor is the control room, which has been preserved exactly as it was during the Manhattan Project. The room is filled with vintage equipment and displays, giving visitors a sense of what it was like to work at the reactor during the 1940s.
Overall, the B Reactor is a must-see destination for anyone interested in the history of science and technology. The site provides a glimpse into the past and offers a unique opportunity to learn about one of the most important scientific achievements of the 20th century.
Plan your visit down to the hour
Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Plan a longer trip
The closest parks, campgrounds, fishing spots, and other landmarks so a quick visit can grow into a full day.
Responsible visitation & Leave No Trace
- Know before you go
- Check the operator's site (BLM, NPS, state agency, or private owner) for access rules, permits, and seasonal closures before driving out.
- Stay on trail
- Many points of interest sit in fragile ecosystems. Stick to marked paths to protect vegetation and prevent erosion.
- Respect wildlife
- Observe from a distance, never feed wildlife, and give nesting birds and denning mammals plenty of space.
- Pack it in, pack it out
- Take all trash, food scraps, and gear back with you. Remote sites often have no trash service.
- Leave what you find
- Don't take rocks, plants, fossils, or artifacts. Federal law protects cultural and natural resources on public land.
Set push alerts in the Snoflo app
Save B Reactor as a favorite, set a weather threshold (precipitation, freezing temperatures), and the iOS app will push the moment conditions cross.
About B Reactor
What is B Reactor?
A point of interest in Washington tracked by Snoflo -- typically a scenic landmark, named summit, monument, or viewpoint.
How fresh is the weather data?
The hourly forecast updates throughout the day from NOAA / yr.no public feeds.
When is the best time to visit?
Use the 15-day temperature & precipitation outlook on this page to pick a window with comfortable temperatures and low precipitation.
How do I get there?
Tap Directions in the hero above for Google Maps driving directions, or Open in map to center the Snoflo interactive map on the spot.
Can I get alerts when conditions change?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this POI, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.
Other points of interest near here
Snoflo-tracked landmarks within driving distance of B Reactor.