Steelhead · Lower Granite Dam
Well below typicalThe run is at its peak
Counted Oct 4
544
7-day average
862
Percentile for the date
0th
This run so far
20,607
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Premier Idaho trout water with diverse seasonal hatches.
Premier Idaho trout water with diverse seasonal hatches. Explore seasonal hatches, access points, and current flow conditions below.
Best Season
May – October
River Type
Freestone
Skill Level
Intermediate
Best Techniques
Dry Flies, Nymphing
Access
Moderate
Explore fish species associated with the Selway River. Each profile includes identification tips, habitat notes, and practical fishing guidance for Idaho anglers.
Review seasonal insect hatches on the Selway River, including timing windows and fly pattern suggestions for Idaho fly fishing.
Check current seasons, limits, and special rules for Selway River before you go. Regulations change, so always verify with IDFG.
The latest fishing conditions and hatch notes for Selway River. Older reports live in the Selway River report archive.
These YouTube videos have been hand-curated by our team because we feel they best represent the Selway River fishery. Watch for river character, access context, and techniques that translate to your next Idaho trip.
Map data © Mapbox © OpenStreetMap
The Selway River supports 3 fish species in our Idaho fishing catalog. Browse each profile for identification tips, seasonal patterns, and how these species are managed on this water.
Steelhead and salmon counted at Lower Granite Dam, the last dam below Idaho, and how this year's run compares with the last ten.
The latest fishing conditions and hatch notes for Selway River. Older reports live in the Selway River report archive.
Lower flows concentrate fish in deeper pockets while making the river easier to cover. Dry-dropper rigs excel, and blue-wing olives are gaining importance as fall settles in.
Fishing guides, outfitters, shuttles, and shops that operate on the Selway River.
The Selway River has 12 documented insect hatches across spring, summer, fall, and winter. Review seasonal timing and recommended fly patterns to plan productive days on this Idaho water.
These 4 YouTube videos have been hand-curated by our team because we feel they best represent the Selway River fishery. Each pick highlights river character, access, and techniques worth knowing before you fish this Idaho water.
Steelhead and salmon counted at Lower Granite Dam, the last dam below Idaho, and how this year's run compares with the last ten.
· yesterday
Lower Granite is the last dam below Idaho. Fish counted there are headed for the Snake, Clearwater and Salmon systems. Fish bound for the Clearwater leave the Snake at Lewiston, just above the dam.
Steelhead · Lower Granite Dam
Well below typical544
862
0th
20,607
Passage over the last three days is well below typical for early October (0th percentile) and easing.
20,607 steelhead have passed Lower Granite since June 16. In a typical year about 52 percent of the run is through by October 4, and passage peaks around October 4.
On pace for roughly 33,000 to 46,000 fish, against a typical 71,000.
Wild fish: 4,441 so far, about 51 percent of a typical wild run.
Bars are the day's count at Lower Granite through Oct 4. The dashed line is what the date usually brings, the ten-year median.
Spring chinook: over for the year, 28,119 passed Lower Granite against a typical 37,000.Season overWhen they reach this water
Antennas in the water read tagged fish as they swim past. A best guess is our estimate of the peak; fish seen are dates real fish were actually recorded. Each spot below says whether it sits on this river or on a tributary.
on this river
Half the chinook run was past Lower Granite by June 23, and they take about 2 days to reach the lower Selway. Measured over 8 seasons that agree closely.
on this river
Half the steelhead run is usually past Lower Granite around October 5, and they take about 167 days to reach the lower Selway. Measured over 8 seasons that agree closely.
Arrival timing from PIT-tag detections via PTAGIS and Columbia River DART; tagged fish are a sample of the run, never a count.
Counts by the U.S. Army Corps of Engineers via Columbia River DART.