USBR · LER:QD

MARIAS RIVER

USBR · LER:QDDAILY

Bureau of Reclamation dam release. Wyoming's Great Plains tailwaters (Gray Reef, Miracle Mile, Wind River Canyon) report a settled daily mean; Pacific Northwest and Colorado River basin stations report 15-minute to hourly readings instead. Check the timestamp for how current this particular reading is.

Marias River at Tiber Dam (Reclamation release), MT

LIBERTY COUNTY, MT48.3183°N, -111.0908°W Updated 2 d ago

FLOW RATE

510cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

510cfs

Optimal band: 434–588 cfs

PERIOD HIGH

738cfs

PERIOD LOW

508cfs

RUNNABLE

59%

last 1 year in band

Weather Map

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Station Location

48.3183, -111.0908

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DATA · USBR · NOAA · NWSUPDATED 2026-09-21 00:00 UTC

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