Where to Fish Gallatin River


The Gallatin River is about twelve miles long from its origin at the confluence of the West and East Gallatin rivers to Three Forks, Montana, where it joins the Jefferson and Madison rivers to form the Missouri River. The river flows through a narrow valley consisting of agricultural and grazing lands at elevations less than 5,000 feet. The banks are primarily undercuts, and long, deep pools provide much of the fish cover. Except for the East and West Gallatin rivers, tributaries to the Gallatin River are limited to a few spring creeks. Water can be slightly turbid year-round due to the sediment input from the East Gallatin. The Gallatin River below the confluence of its forks suffers from sedimentation, warm water temperatures, dewatering, and the presence of M. cerebralis, the causative agent of whirling disease. Trout populations decline in the lower river due to these factors and a variety of other cumulative impacts.

Mile Upper: 97.19
Mile Lower: 0.0
Mouth Latitude/Longitude: 45.93853 -111.49242
Status of the Fishery:
FWP Region: Region 3 
County: Gallatin
Fishing District: Central  •  National Park Service
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Waterbody Section Field Form Type Date Purpose Species
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For Comparative analysis all Length Units are millimeters : all Weights are grams

Species Count Avg StdDev Min Max AvgWgt StdDevWgt MinWeight S/L Sects Surveys Waterbody
To see this data, first select one or more rows from the Collection Info tab.
For Comparative analysis all Length Units are millimeters : all Weights are grams

Waterbody Section Species Count AveLength StdDevLength MinLength MaxLength AveWeight StdDevWeight MinWeight MaxWeight
To see this data, first select one or more rows from the Collection Info tab.
For Comparative analysis all Length Units are millimeters : all Weights are grams

Waterbody Year Section Species Count AveLength StdDevLength MinLength MaxLength AveWeight StdDevWeight MinWeight MaxWeight
To see this data, first select one or more rows from the Collection Info tab.
This is a preview, all fields will be visible by selecting a download option. For Comparative analysis all Length Units are millimeters : all Weights are grams.

Year Species Abbrv Length Weight M/C Count Sex Mort Hook Scar Disease Scales Otolith Fin Clip Tag Comment Genetics Age Stomach Intercept Slope Gear Equipment Trip Date Pass/Run Water Section Lat/Down Lon/Down Lat/Up Lon/Up Agency
Year River Mile Angler Days Std. Error
2017 0  to  12.05 15190 3121
2015 0  to  12.05 10577 2276
2013 0  to  12.05 11763 2063
2011 0  to  12.05 5766 905
2017 12.05  to  68.62 32442 6277
2015 12.05  to  68.62 51370 4751
2013 12.05  to  68.62 56887 5077
2011 12.05  to  68.62 46966 4076
2017 47.46  to  97.19 40622 5746
2015 47.46  to  97.19 61984 4605
2013 47.46  to  97.19 55940 4490
2011 47.46  to  97.19 34342 2829
View the latest Montana Fishing Regulations.
Station Name RiverMile Website Link
Gallatin River near Gallatin Gateway MT 47 Link
Gallatin River at Logan MT 6 Link