Poplar River at international boundary water level
River gauge, Poplar River, Montana, United States
Right now
Below flood stage
Water level
- Flow
- 4.8 cfs
History
What this means
Water levels are unremarkable at Poplar River at international boundary, where the gauge shows 2.46 ft.
It is 3.54 ft below the flood stage of 6.00 ft.
It has barely moved over the past 24 hours. The 30-day range is 2.46 ft – 2.49 ft.
Fall is often low-water season on rivers, until steadier rain returns.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 10.45 ftApril 6, 1954
Paddling and fishing conditions
Most paddlers and anglers will find the river in good shape at this stage.
For reference, flood stage is 6.00 ft.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 10.45 ft | April 6, 1954 |
| 2 | 9.38 ft | April 23, 1975 |
| 3 | 9.17 ft | June 21, 1963 |
| 4 | 8.96 ft | March 17, 2017 |
| 5 | 8.78 ft | March 21, 1939 |
| 6 | 8.58 ft | July 22, 1993 |
| 7 | 8.43 ft | April 3, 1969 |
| 8 | 8.28 ft | March 18, 1976 |
| 9 | 8.25 ft | April 13, 1982 |
| 10 | 8.16 ft | April 7, 1952 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Poplar River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Poplar River near Poplar MTRiver gauge, Poplar River | 7.22 ft | Below flood stage | +0.03 ft | 65 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| East Poplar River at international boundaryRiver gauge, East Poplar River | 1.58 m | Below flood stage | −0.03 m | 21 km |
| Poplar R above W Fk Poplar R, near BredetteRiver gauge, Poplar R | 26.95 ft | No reference yet | −0.01 ft | 32 mi |
Questions and answers
What is flood stage for the Poplar River at international boundary?
The official flood stage is 6.00 ft. The level is currently 3.54 ft below it.
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of Poplar River at international boundary today?
On Oct 19, 2026, 05:15 PM MDT, the water level was 2.46 ft. Steady over the last 24 hours.
Is Poplar River at international boundary rising or falling?
Steady over the last 24 hours.
Is the level of Poplar River at international boundary normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Poplar River at international boundary?
The highest level on record is 10.45 ft on April 6, 1954.
How often is this data updated?
The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:06178000(Agency page)- Coordinates
48.99029, -105.69691(WGS84)- Vertical datum
- NAVD88
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 2.46 ft | 2026-10-19 23:15 | Provisional |
| Flow | 4.8 cfs | 2026-10-19 23:15 | Provisional |
Download
Embed this gauge
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How to cite
U.S. Geological Survey: Poplar River at international boundary (usgs:06178000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/montana/poplar-river-at-international-boundary
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer