Mammoth Spring At Mammoth Spring flow report
As of July 13, 2026, Mammoth Spring At Mammoth Spring is flowing at 293 cfs with a gage height of 4.36 ft, holding steady over the past 24 hours. Source: USGS gauge #07069190, refreshed throughout the day.
Historical Data
Mammoth Spring At Mammoth Spring at a glance
How Mammoth Spring At Mammoth Spring is running right now, where it sits on the map, and the key gauge stats.
Mammoth Spring At Mammoth Spring is flowing at 293 cfs, with the water sitting 4.36 ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #07069190 in Arkansas. Over the past 10 days the average has been 304 cfs, peaking at 314 cfs.
Over the next 5 days, Mammoth Spring At Mammoth Spring is expected to hold near today's 293 cfs, toward roughly 297 cfs by 2026-07-18 (likely range 239-370 cfs) -- running well below the seasonal normal.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Arkansas flow report.
Streamflow Forecast
Powered by PULSE — Snoflo’s Predictive Unified Learning & Simulation Engine, which learns from how this river has answered every past storm, snowmelt, and dry spell to forecast where it’s headed with a precision generic models can’t match.
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
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 forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Mammoth Spring At Mammoth Spring
The river is mainly fed by the Mammoth Spring, the seventh largest spring in the world. The flow providers to the spring are groundwater, precipitation, and surface runoff. The spring is not dammed and has no significant tributaries. Seasonal flow is high in the spring and low in the summer. The spring also has a history of flooding during heavy rainfall. The water is crystal clear and is used for recreational activities such as fishing, canoeing, and swimming. The Mammoth Spring is also the source of the Spring River, which flows for 57 miles before joining with the Eleven Point River.
Nearby streamflow levels
Cross-check Mammoth Spring At Mammoth Spring's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Mammoth Spring At Mammoth Spring | 293 cfs |
| Spring River At Town Branch Bridge At Hardy | 452 cfs |
| Eleven Point River Near Bardley | 483 cfs |
| Elevenpoint River Near Ravenden Springs | 599 cfs |
| Spring River At Imboden | 430 cfs |
| Black River At Pocahontas | 3,050 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Mammoth Spring At Mammoth Spring. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Hardy | 0 in |
| Calamine | 0 in |
| Strawberry 0.5 Nnw | 0 in |
| Jordan 3nnw | 0 in |
| Alicia | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Mammoth Spring At Mammoth Spring.
Boat launches
See all →
River runs
See all →
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Mammoth Spring At Mammoth Spring in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Mammoth Spring At Mammoth Spring crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Mammoth Spring At Mammoth Spring
Where does the streamflow data for Mammoth Spring At Mammoth Spring come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 07069190. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Mammoth Spring At Mammoth Spring rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Mammoth Spring At Mammoth Spring report
Create your free account to track this river — and everything else you love on the water.
- Flow alerts — get pinged the moment this river hits your range
- Save favorites — every river, lake & snowpack in one place
- Full history & forecasts — plus the free iPhone app