Missouri River: Holter Dam to Cascade Or Ulm

Activity Details

From Missoula: 130 miles

Activity Type(s): Overnight/Multiday Floats

Length (1-way): 64 miles

Difficulty: Easy


This stretch of water, from Holter Dam to the town of Cascade, thirty miles downstream, is the prime trout fishing waters on the Missouri. The Missouri River in this sections runs through a valley and a canyon that has sparsely forested hillsides.

This section of the Missouri River also has a significant history. Numerous historical sites of the Lewis and Clarks expedition are found all along this stretch of river.

This section is also where the vast majority of fly fishing occurs on this river. The cold waters released by Holter Dam, which is not run entirely for the benefit of electricity production, provide excellent trout habitat. Access to the river between Holter Dam and Cascade is excellent.


I90 East to exit 109 for HWY 200 to Great Falls, continue for 100 miles to State HWY 434. At 17 miles 434 turns left and becomes Wolf Creek Main St. Wolf Creek Main turns right and becomes Walsh St. Turn left at Recreation Rd. Continue on to Craig Frontage Rd. Turn left onto Holter Dam Rd.