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St. Joe River fly fishing

St. Joe River

Idaho · freestone · Westslope Cutthroat Trout, Bull Trout, Rainbow Trout, Brook Trout

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HomeRiversIdahoSt. Joe River

Overview

The St. Joe River is a conservation triumph and a fly angler's paradise rolled into one of northern Idaho's most beautiful river corridors. Fed by cold springs and snowmelt in the mountains along the Idaho-Montana border, the St. Joe flows west through the forested panhandle to eventually reach St. Maries and Lake Coeur d'Alene. The river is designated Wild and Scenic in its upper reaches, holds a healthy population of native westslope cutthroat trout that have existed here since before the ice age, and is widely considered one of the finest native cutthroat streams in the Pacific Northwest.

Westslope cutthroat trout are the primary species throughout the drainage, and they are the original, pre-contact strain that has inhabited this watershed for thousands of years. These fish occupy a special niche in Idaho conservation — genetically pure, unaffected by stocking, and highly responsive to surface fly presentations. Average fish run 10 to 14 inches, with 16 to 18-inch fish available in the deeper runs and most remote sections. Bull trout, a federally threatened species, are present throughout the drainage and require immediate, careful release.

The river divides naturally into two distinct fisheries. Below Avery, the river is large enough to float by canoe or raft, and the lower canyon holds good populations of cutthroat and some native bull trout. Above Avery, the river becomes walk-and-wade water, narrowing as it ascends into the wilderness. Forest Road 50 follows the river for miles above Avery, providing access to miles of uncrowded cutthroat water. This is walk-in territory — the road is gravel, sometimes rough, and a 4WD vehicle with clearance is recommended above Avery.

The upper St. Joe above Heller Creek enters truly wild territory. Here the river is small, spring-clear, and full of native cutthroat that have rarely seen a fly. Fish to an attractor pattern like a Royal Wulff or Elk Hair Caddis in the rifle heads and you will quickly understand why people travel from across the country to experience the upper St. Joe. The 12-inch cutthroat that detonates on a size 14 elk hair caddis in this water is worth the long drive.

The St. Joe corridor is home to exceptional wildlife: moose, elk, black bear, and osprey are regular companions on the river. The combination of exceptional fishing, spectacular scenery, and near-wilderness solitude makes the St. Joe one of Idaho's most complete fly fishing destinations.

Westslope Cutthroat TroutBull TroutRainbow TroutBrook Trout

Angler Intel

Live from the App

Regulations

Idaho fishing license required. Native westslope cutthroat: catch-and-release only in many designated sections — check IDFG regulations. Bull trout catch-and-release only, do not remove from water. Wild and Scenic designation applies to upper sections. Catch limits vary by section — consult current IDFG regulations. Above Avery: primarily walk-and-wade, 4WD road access. Forest road closures possible in spring — check with St. Joe Ranger District.

Access Points & Map

1

St. Maries Lower Access

Town of St. Maries at Lake Coeur d'Alene drainage. Lower St. Joe access. Floatable section begins here. Some rainbow trout and cutthroat mix.

47.3160, -116.5580Parking available
2

Calder Access

Mid-river access at Calder. Good wading water with riffle-pool structure. Westslope cutthroat in excellent summer evening hatches.

47.2840, -116.2050Parking available
3

Avery Access

Transition from float to walk-wade territory. Last significant services. Above here: primitive road access, 4WD recommended. Excellent cutthroat water upstream.

47.2360, -115.8250Parking available
4

Heller Creek

Upper St. Joe above Heller Creek. Remote and uncrowded. Native cutthroat rarely disturbed. FR 50 access — rough road, high-clearance recommended.

47.1200, -115.5500Parking available
5

Upper St. Joe Wilderness

Wild and Scenic corridor. Trail access only above the road end. Pristine native cutthroat habitat. Backcountry skills and self-sufficiency required.

47.0400, -115.3000

Hatch Chart

MonthInsectSizePattern
JuneGolden Stonefly#8-12Stimulator
Pale Morning Dun#16-18PMD Comparadun
Caddis#14-16Elk Hair Caddis
JulyCaddis#14-16Elk Hair Caddis
Yellow Sally#14-16Yellow Stimulator
Pale Morning Dun#16-18PMD Sparkle Dun
AugustGrasshopper#8-12Dave's Hopper
Caddis#14-18X-Caddis
Ants#16-20Black Foam Ant
SeptemberBlue-winged Olive#18-20Parachute BWO
Mahogany Dun#14-16Mahogany Comparadun
Caddis#14-16Elk Hair Caddis
OctoberBlue-winged Olive#20-22CDC BWO
Midge#20-24Mercury Midge

Lodges in Idaho

Henry's Fork Lodge

Henry's Fork Lodge

$900-1,600/night

June–September

Fly Shops Nearby

Drift Lodge & Fly Shop

4771 US-20, Island Park, ID 83429

Henry's Fork Anglers

3340 US-20, Island Park, ID 83429

Hyde Outfitters

Idaho Falls, ID

Idaho Angling Service

208 David St, Bellevue, ID 83313

Quick Facts

States
Idaho
Length
130 miles
Type
freestone
Difficulty
intermediate
Wading
both
Best Months
June, July, August, September, October
Species
Westslope Cutthroat Trout, Bull Trout, Rainbow Trout, Brook Trout

Season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Oct
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