Marias River at Tiber Reservoir / Lake Elwell
Montana — Water Level & Flood Stage
Located in Liberty County, Montana on the Marias River. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: TBRM8). Live data may be limited. View on NWS AHPS →
Flood Stages
Action Stage
3012 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jul 18, 2011 | 4787.43 ft | — |
| Jul 18, 2011 | 4787.43 ft | — |
About This Gauge
NWS LID
TBRM8
River
Marias River
County
Liberty, MT
Coordinates
48.3100°N, 111.0878°W
Get Flood Alerts for Marias River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Marias River at Tiber Reservoir / Lake Elwell?
The Marias River at Tiber Reservoir / Lake Elwell gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Marias River at Tiber Reservoir / Lake Elwell?
This gauge has NWS-defined flood categories. Check the flood stages section above for current thresholds.
How do I get alerts when Marias River rises?
Download StormCast free on Google Play, go to River Gauges, and add Marias River at Tiber Reservoir / Lake Elwell to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Marias River at Tiber Reservoir / Lake Elwell gauge located?
The gauge is located in Liberty County, Montana at coordinates 48.3100°N, 111.0878°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
- Stage may be affected by ice during winter months.