Flathead River - South Fork
MT
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River
About Flathead River - South Fork
The South Fork of the Flathead River is a 98-mile-long river in Northwestern Montana, originating in the Bob Marshall Wilderness and flowing north-northwest through undeveloped valleys before entering the backwaters of Hungry Horse Reservoir. This significant tributary of the Flathead River is a prime destination for fly fishing, offering opportunities to target various trout species. While specific hatch information is not detailed in the provided content, anglers can anticipate insect activity common to this region. The river's course includes both free-flowing sections and stretches influenced by the Hungry Horse Reservoir and Dam, impacting water conditions and accessibility. Fly fishing on the South Fork Flathead River can involve a mix of wading in its upper reaches and potentially floating in the sections below the dam.
Access
Seasons
Terrain
Water
Fish Species
Trout
Bull Trout
Regulations
Fishing Styles
undefined USGS Water Conditions
Water conditions for the last 7 days. You can gain insights to fishing activity based on these conditions, like water temperature and flow.
Data sourced from the USGS National Water Information System
Methods
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Wade Friendly
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Float Friendly
Land Ownership
Public Forest Service
National Park
Regulations
Trip Planning
Best fishing typically occurs during spring and summer. Check water conditions before heading out.
See what insects are emerging on Flathead River - South Fork's hatch forecast — including active hatches, water temperatures, and which patterns to have in your box this month.