Threemile Campground campground
Threemile Campground
The area is known for its abundant wildlife, including elk, deer, moose, and bears. Visitors can explore nearby hiking trails, go fishing in the river, or enjoy a scenic drive through the nearby mountains.
The campground offers a range of amenities, including picnic tables, fire pits, and vault toilets. There are 17 campsites available on a first-come, first-served basis, so it’s best to arrive early to secure a spot.
An interesting fact about the area is that it was once the site of a major earthquake in 1959, which caused a massive landslide that created a natural dam in the Gros Ventre River. The resulting lake, known as Lower Slide Lake, is a popular spot for fishing and boating.
The best time to visit Three Mile Campground is during the summer months when temperatures are mild, with average highs in the mid-70s to low 80s Fahrenheit. Visitors should note that the campground is only open from June to September.
What's on-site at Threemile Campground
Key facilities Snoflo tracks for this campground. Confirm with the operator before booking -- amenities can change seasonally.
Plan your trip 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. Each cell is colour-coded relative to the column min/max so trends jump out at a glance.
| 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. Hover any point for the full breakdown.
Other campgrounds in the area
Snoflo-tracked campsites within driving distance of Threemile Campground, with reservations status.
| Campground | Reservations | Toilets | View |
|---|---|---|---|
| Three Mile | ✗ | ✓ | → |
| Sleeping Giant Campground | ✗ | ✗ | → |
| Pahaska | ✗ | ✗ | → |
| Eagle Creek | ✗ | ✓ | → |
| Eagle Creek Campgound | ✗ | ✗ | → |
Nearby streamflow
USGS streamgauges within reach of Threemile Campground -- pulled live from the National Water Information System.
| Streamgauge | Discharge | View |
|---|---|---|
| Yellowstone River At Yellowstone Lk Outlet Ynp | 1,850 cfs | → |
| North Fork Shoshone River At Wapiti | 1,330 cfs | → |
| South Fork Shoshone River Near Valley | 187 cfs | → |
| South Fork Shoshone River Ab Buffalo Bill Res | 273 cfs | → |
| Soda Butte Cr At Park Bndry At Silver Gate | 104 cfs | → |
| Lamar River Nr Tower Falls Ranger Station Ynp | 1,890 cfs | → |
Nearby snow depths
NRCS SNOTEL stations within reach of Threemile Campground -- relevant when planning a shoulder-season or alpine trip.
| SNOTEL station | Snowpack | 24h Snowfall | View |
|---|---|---|---|
| Pahaska - Coop | 0.0 in | 0.0 in | → |
| East Entrance Yellowstone Np - Coop | 0.0 in | 0.0 in | → |
| Nohrsc Sylvan Road Snotel | 0.0 in | 0.0 in | → |
| Sylvan Road | 0.0 in | 0.0 in | → |
| Sylvan Lake | 1.0 in | 0.0 in | → |
| Nohrsc Sylvan Lake Snotel | 0.0 in | 0.0 in | → |
Plan a longer trip
The closest parks, lakes, boat launches, and paddle runs so a camping night can grow into a full weekend.
Parks
Fishing spots
Camping essentials & Leave No Trace
- Pack it in, pack it out
- Take all trash, food scraps, and gear back with you to keep campsites clean and protect wildlife.
- Respect wildlife
- Observe animals from a distance, store food securely, and never feed wildlife to maintain natural behavior and safety.
- Know before you go
- Check weather, fire restrictions, trail conditions, and permit requirements to ensure a safe and well-planned trip.
- Minimize campfire impact
- Use established fire rings, keep fires small, fully extinguish them, or opt for a camp stove when fires are restricted.
- Leave what you find
- Preserve natural and cultural features by avoiding removal of plants, rocks, artifacts, or other elements of the environment.
Set push alerts in the Snoflo app
Save Threemile Campground as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.
About Threemile Campground
Can I make reservations at Threemile Campground?
This campground does not appear to accept reservations -- it's typically first-come, first-served. Arrive early on summer weekends.
How fresh is the weather data on this page?
The hourly forecast updates throughout the day from the NOAA / yr.no public feeds. Streamflow data is pulled live from USGS streamgauges and snowpack from the NRCS SNOTEL network.
What's the best time of year to visit?
Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation. For longer trips, the 5-day hourly meteogram shows snow + rain accumulation hour-by-hour.
How do I get to Threemile Campground?
Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the campground.
Can I get alerts when conditions change?
Yes -- alerts are managed through the Snoflo iOS app. Favorite this campground, set a threshold (temperature, snowpack, precipitation), and you'll get a push the moment it crosses.
Other campgrounds near here
Snoflo-tracked campgrounds within driving distance of Threemile Campground.