Union Falls campground
Union Falls
The campground provides several amenities, including picnic tables, fire rings, vault toilets, and potable water. The area is available on a first-come, first-serve basis and has a total of 24 campsites, which can accommodate tents and small RVs. It is important to note that the campground does not have any electrical hookups or showers.
One quirky fact about the area is that it is home to Union Falls, a beautiful and unique waterfall that is formed by the confluence of three different streams. This waterfall is a popular destination for hikers and photographers alike.
The best time to visit Union Falls is during the summer months, from late June to early September. During this time, the weather is mild, and the average temperatures range from 60 to 75 degrees Fahrenheit during the day and 40 to 50 degrees Fahrenheit at night. However, it is important to note that the campground is only accessible by foot or horseback, so visitors should be prepared for a backcountry camping experience.
What's on-site at Union Falls
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 Union Falls, with reservations status.
| Campground | Reservations | Toilets | View |
|---|---|---|---|
| 9c4s | ✗ | ✗ | → |
| 9u5 | ✗ | ✗ | → |
| Union Falls Warm Fork | ✓ | ✗ | → |
| Mountain Ash Creek | ✓ | ✗ | → |
| 9u1 | ✗ | ✗ | → |
Nearby streamflow
USGS streamgauges within reach of Union Falls -- pulled live from the National Water Information System.
| Streamgauge | Discharge | View |
|---|---|---|
| Snake River Ab Jackson Lake At Flagg Ranch Wy | 3,070 cfs | → |
| Falls River Ab Yellowstone Canal Nr Squirrel Id | 1,350 cfs | → |
| Falls River Nr Squirrel Id | 617 cfs | → |
| Falls River Nr Ashton Id | 1,100 cfs | → |
| Snake River Nr Moran Wy | 4,010 cfs | → |
| Big Springs At Big Springs Id | 128 cfs | → |
Nearby snow depths
NRCS SNOTEL stations within reach of Union Falls -- relevant when planning a shoulder-season or alpine trip.
| SNOTEL station | Snowpack | 24h Snowfall | View |
|---|---|---|---|
| Grassy Lake | 0.0 in | 0.0 in | → |
| Nohrsc Grassy Lake Snotel | 0.0 in | 0.0 in | → |
| Nohrsc Lewis Lake Divide Snotel | 0.0 in | 0.0 in | → |
| Lewis Lake Divide | 0.0 in | 0.0 in | → |
| Nohrsc South Entrance Ynp Snake River Station - Snotel | 0.0 in | 0.0 in | → |
| Snake River Rs - Coop | 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
- Yellowstone National Park
- John D Rockefeller Jr Memorial Parkway
- Gallatin National Forest
- Harriman State Park
Fishing spots
Points of interest
- Flagg Ranch Info Station
- Old Faithful Visitor Education Center
- Old Faithful Static Webcam
- Old Faithful Live Webcam
- Lower Mesa Falls Observation Site
- Grant Village Visitor Center
Paddle runs
- Cave Falls Run
- The Headwaters To The Confluence With Falls River
- The Headwaters To The Southern Yellowstone National Park Boundary
- The Headwaters To Ends Approximately At Kepler Cascades
- Yellowstone Np To Targhee Nf Boundary
- Headwaters Of North And South Fork And Mainstem To Targhee Nf Boundary
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 Union Falls as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.
About Union Falls
Can I make reservations at Union Falls?
Yes -- this campground accepts reservations. Snoflo recommends booking early for peak season; check the operator (Recreation.gov / state park system / private operator) for the booking window and cancellation policy.
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 Union Falls?
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 Union Falls.