Skip to content

Tongue River in Montana

River47.7 mi
Make a poster

Around here

Around Tongue River

5 mi

Data Source: Recreation.gov · Public land: USGS PAD-US

About this river

Tongue River is a 47.7 mile river. Streamflow is measured at the USGS gauge Tongue R at Birney Day School Br nr Birney MT (site 06307616). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1980 to 2026

Tongue River typically runs highest in June, at a median 1,235 cfs, and lowest in January, at 160 cfs. The highest flow on record for any single day is 6,470 cfs, in 2019.

Show the numbers
Typical flow by month at Tongue R at Birney Day School Br nr Birney MT, in cfs
MonthTypical (cfs)Usual range (cfs)
January160124 to 200
February160119 to 200
March182120 to 276
April210106 to 378
May459270 to 755
June1,235452 to 2,055
July421357 to 585
August373322 to 435
September289228 to 373
October218168 to 288
November197151 to 267
December160130 to 200

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 47 years of record. Statistics published by the US Geological Survey for Tongue R at Birney Day School Br nr Birney MT (site 06307616). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Made to print

Put Tongue River on your wall

This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

Make the posterOrder by December 8 for Christmas delivery.
Free widget

Embed this gauge on your site

Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Tongue River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.

Embed code

See every free widget you can put on your site, including live conditions and a 7 day forecast.