Total streamflow across the
Gros Ventre River
was last observed at
778
cfs, and is expected to yield approximately
1,543
acre-ft of water today; about 175%
of normal.
River levels are high.
Average streamflow for this time of year is
444 cfs,
with recent peaks last observed
on
2011-07-01 when daily discharge volume was observed at
8,710 cfs.
Maximum discharge along the river is currently at the
Gros Ventre River At Kelly Wy
reporting a streamflow rate of 843 cfs.
However, the streamgauge with the highest stage along the river is the
Gros Ventre River At Zenith Wy
with a gauge stage of 19.4 ft.
This river is monitored from 2 different streamgauging stations along the Gros Ventre River, the highest being situated at an altitude of 6,650 ft, the
Gros Ventre River At Kelly Wy.
| Last Updated | 2026-03-29 |
| Discharge Volume | 1,543 ACRE-FT |
| Streamflow |
778.0 cfs
-20.0 cfs (-2.51%) |
| Percent of Normal | 175.13% |
| Maximum |
8,710.0 cfs
2011-07-01 |
| Seasonal Avg | 444 cfs |
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Gros Ventre River At Kelly Wy
USGS 13014500 |
843 cfs | 5.25 ft | -2.51 | |||||
|
Gros Ventre River At Zenith Wy
USGS 13015000 |
769 cfs | 19.4 ft | -4.92 |
The Gros Ventre (English: ; from French: "big belly"), also known as the Aaniiih, A'aninin, Haaninin, and Atsina, are a historically Algonquian-speaking Native American tribe located in north central Montana. Today the Gros Ventre people are enrolled in the Fort Belknap Indian Community of the Fort Belknap Reservation of Montana, a federally recognized tribe with 3,682 enrolled members, that also includes Assiniboine people or Nakoda people, the Gros Ventre's historical enemies. The Fort Belknap Indian Reservation is in the northernmost part of Montana, just south of the small town of Harlem, Montana.