K-25 Portal Checkpoint overview
K-25 Portal Checkpoint
The K-25 Portal Checkpoint was once a top-secret area that played a significant role in the production of weapons-grade uranium for use in nuclear bombs. Today, visitors can see the remains of the checkpoint, including the guardhouse and a replica of the "badge" that workers had to carry to access the site.
One of the unique things that visitors can see at the K-25 Portal Checkpoint is the actual equipment that was used to enrich uranium during the Manhattan Project. This machinery is enormous, and it's fascinating to see how it was used to produce nuclear material.
Another reason to visit the K-25 Portal Checkpoint is to learn about the daily life of workers during the Manhattan Project. Visitors can learn about the working conditions, the safety protocols that were put in place, and the cultural impact that the project had on the surrounding area.
Overall, the K-25 Portal Checkpoint is a fascinating destination that offers a unique glimpse into an important period in American history. Whether you're interested in science, history, or just curious about the unknown, this point of interest is definitely worth a visit.
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 K-25 Portal Checkpoint as a favorite, set a weather threshold (precipitation, freezing temperatures), and the iOS app will push the moment conditions cross.
About K-25 Portal Checkpoint
What is K-25 Portal Checkpoint?
A point of interest in Tennessee 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 K-25 Portal Checkpoint.