Fly fishing · · Boise / Anderson Ranch · Tailwater

South Fork Boise River — hatch chart + live conditions

Cold tailwater below Anderson Ranch Dam. Strong midge and PMD hatches. Bull trout present — handle carefully. Excellent year-round fishing with consistent flows.

Current conditions: Checking USGS… USGS site 13185000

Top 3 dry flies for June

1
Elk Hair Caddis fly pattern
Size 12-16 · dry
Matches active hatch: caddis.
2
Stimulator fly pattern
Size 10-14 · dry
Matches active hatch: caddis.
3
Green Drake / Coffin Fly fly pattern
Size 8-12 · dry
Matches active hatch: green drake.

Switch to nymphs or streamers →

12-month hatch chart

Month blue wing olivecaddisgreen drakemidgeoctober caddispale morning dunskwalaterrestrialtrico
January
February
March
April
May
June · now
July
August
September
October
November
December
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Frequently asked

What are the best months to fish the South Fork Boise River?

Best months: April, May, June, July, August, September, October.

What flies hatch on the South Fork Boise River in June?

Active hatches this month: pale morning dun, caddis, green drake.

What species are in the South Fork Boise River?

Primary: rainbow trout, bull trout. Cold tailwater below Anderson Ranch Dam. Strong midge and PMD hatches. Bull trout present — handle carefully. Excellent year-round fishing with consistent flows.

Are there special fishing regulations on the South Fork Boise River?

No special-regulation section is listed here — standard Idaho trout regulations apply. Check ID F&G before fishing.

How do I check live water conditions on the South Fork Boise River?

The live USGS reading is shown at the top of this page (site 13185000). It refreshes hourly.

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