How high is the Poplar River at International Boundary right now?

The Poplar River at International Boundary is currently flowing at 3 cubic feet per second with a gage height of 2.42 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Poplar River at International Boundary normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 27th percentile compared to the long-term historical record at this gauge.

Is the Poplar River at International Boundary at flood stage?

No — the gage height is 3.58 feet below the NWS flood-stage threshold of 6.0 feet.

What is the historical median flow for the Poplar River at International Boundary on June 11?

The long-term median discharge for this date is 7 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 1 to 80 cfs.

Where is the Poplar River at International Boundary stream gauge located?

The Poplar River at International Boundary stream gauge is operated by the USGS in Daniels County, MT on the Poplar River. USGS site number 06178000 (coordinates 48.9903, -105.6969).

Poplar River at International Boundary

USGS Site No: 06178000 • Poplar River • Daniels County, MT

Poplar River at International Boundary on the Poplar River is currently at 3 cfs (Normal — 27th percentile for this date) . Gage height: 2.42 ft.

Reading from 1 week ago

Downstream on Poplar River ↓

Poplar River Near Poplar Mount

CFS Discharge

2.42

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	1
25th	Low threshold	3
50th (Median)	Normal (median)	7	Today: 3 cfs
75th	High threshold	17
95th	Very High threshold	80

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	4	—
May 27, 2026	4	—
May 26, 2026	5	—
May 25, 2026	5	—
May 24, 2026	6	—
May 23, 2026	6	—
May 22, 2026	6	—
May 21, 2026	7	—
May 20, 2026	7	—
May 19, 2026	7	—
May 18, 2026	7	—
May 17, 2026	6	—
May 16, 2026	5	—
May 15, 2026	5	—
Apr 20, 2026	13	—
Apr 19, 2026	14	—
Apr 18, 2026	14	—
Apr 17, 2026	16	—
Apr 16, 2026	16	—
Apr 15, 2026	15	—
Apr 14, 2026	15	—
Apr 13, 2026	13	—
Apr 12, 2026	12	—
Apr 11, 2026	12	—
Apr 10, 2026	11	—
Apr 9, 2026	10	—
Apr 8, 2026	11	—
Apr 7, 2026	11	—
Apr 6, 2026	11	—
Apr 5, 2026	12	—

Station Information

USGS Site No: 06178000
State: MT
County: Daniels County
Coordinates: 48.9903, -105.6969
Drainage Area: 358 mi²
Datum (ft): 2,460.0
HUC Code: 10060003

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 5.0 ft
Flood Stage: 6.0 ft

Currently 3.58 ft below flood stage.

Recent Extremes

Max discharge: 22 cfs

Mar 20, 2026
Min discharge: 0 cfs

Jul 14, 2025
Days at flood stage: 0

Computed from the local daily-values archive.