Marias River

Streamflow Hydrology Weather


Marias River Levels

March 29 2024

1,494 ACRE-FT

Discharge Volume Today
+5.0 cfs (+0.67%) since yesterday
55.07% of normal Low

Total streamflow across the Marias River was last observed at 753 cfs, and is expected to yield approximately 1,494 acre-ft of water today; about 55% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,367 cfs, with recent peaks last observed on 2011-06-10 when daily discharge volume was observed at 18,600 cfs.

Maximum discharge along the river is currently at the Marias River Near Loma Mt reporting a streamflow rate of 516 cfs. However, the streamgauge with the highest stage along the river is the Marias River Near Chester Mt with a gauge stage of 3.21 ft. This river is monitored from 3 different streamgauging stations along the Marias River, the highest being situated at an altitude of 3,099 ft, the Marias River Near Shelby Mt.

Last Updated 2024-03-29
Streamflow 753.0 cfs
Percent of Normal 55.07%
Maximum 18,600.0 cfs
2011-06-10

About the marias river


The Marias River is a tributary of the Missouri River, spanning a length of approximately 210 miles in Montana. The river is named after the French explorer, Marias, who first discovered it in 1806. The hydrology of the Marias River includes a snowmelt-dominated flow with high seasonal variability. There are several reservoirs and dams along the river, including Tiber Dam and Lake Elwell, which are primarily used for irrigation and hydroelectric power generation. Recreational activities such as fishing and boating are popular among tourists and locals. Agriculture is also a significant industry along the Marias River, with crops such as wheat, barley, and hay being grown in the area. Despite being a relatively small river, the Marias River has played an essential role in the history and economy of Montana.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Marias River Near Shelby Mt
USGS 06099500
351 cfs 3.05 ft 4.22
Marias River Near Chester Mt
USGS 06101500
402 cfs 3.21 ft 0
Marias River Near Loma Mt
USGS 06102050
516 cfs 1.12 ft -3.73

Peak Annual Discharge

Marias River Maximum Total Discharge

Seasonal Comparison

Marias River Year Over Year Discharge


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