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East Outlet Moosehead - fly fishing in Maine

East Outlet Moosehead

Fly fishing in Maine · Intermediate · Best seasons: Spring, Summer, Fall

Target Species

Landlocked Salmon, Brook Trout

About This Water

Moosehead Lake outlet with landlocked salmon and brook trout. Excellent fly water.

Fishing Recommendations

Welcome to the East Outlet of the Kennebec River, arguably the most iconic fly fishing destination in the state of Maine. As a tailwater flowing out of the massive Moosehead Lake, the East Outlet offers consistent cold water, breathtaking scenery, and some of the hardest-fighting Landlocked Salmon in the Northeast.


🎣 Location Overview

The East Outlet (EO) is a 3.5-mile stretch of water that connects Moosehead Lake to Indian Pond. It is a quintessential Maine river: rugged, boulder-strewn, and surrounded by dense forest.

What makes it special is its tailwater status. Because the water is drawn from the depths of Moosehead Lake, it stays cool even in the heat of August, providing a sanctuary for cold-water salmonids. The river is characterized by heavy pocket water, long pools, and classic "slick" tail-outs. It is a powerful river; even at lower flows, it commands respect. Anglers love it because it offers a "big water" experience where you have a legitimate chance at a 20-inch wild Brook Trout or a leaping Landlocked Salmon on any given cast.


🐟 Target Species & Behavior

Landlocked Salmon

The "Landlock" is the king of the East Outlet. Unlike their sea-run cousins, these fish spend their lives in the lake/river system.

Brook Trout

Maine is the last stronghold for wild Brook Trout in the Eastern US.


📅 Best Times to Fish

Spring (Mid-May to June)

The Prime Time. As the ice leaves Moosehead Lake, the smelt begin their run. The salmon follow them into the river to gorge.

Summer (July to August)

The Hatch Season. While other rivers get too warm, the EO remains fishable.

Fall (September to October 31)

The Spawning Run. Salmon and trout move from Indian Pond up into the river to spawn.


🪰 Recommended Flies & Techniques

Streamers (Best for Spring/Fall)

Nymphing (Consistent Year-Round)

Dry Flies (Summer Evenings)


💡 Pro Tips & Local Knowledge


⚠️ Important Information

Guide's Final Word: The East Outlet is a river of dreams. Respect the power of the water, keep your flies deep in the morning and on the surface in the evening, and hold on tight when a Salmon heads for the downstream rapids!

Bug Hatches & Matching Flies

HatchTypePeak monthsTime of dayHook sizesMatching flies
Hendrickson
Ephemerella subvaria
mayflyMay, JuneAfternoon#12-14Red Quill #12-14, Hendrickson Nymph #12-14, Hendrickson Emerger #14
Grannom Caddis
Brachycentrus
caddisMayAll Day#14-16Elk Hair Caddis (Olive/Black) #14-16, Peeking Caddis #14, Deep Sparkle Pupa #16
Blue Winged Olive
Baetis
mayflyMay, September, OctoberAfternoon#18-22Parachute BWO #18-22, RS2 #20, Pheasant Tail Nymph #18-20
Sulfur
Ephemerella invaria
mayflyJune, JulyEvening#14-18Sulfur Sparkle Dun #16-18, Pale Evening Dun #14-16, Sulfur Nymph #16
Slate Drake
Isonychia bicolor
mayflyJuly, August, SeptemberAfternoon/Evening#10-12Iso Parachute #10-12, Prince Nymph #10-12, Zug Bug #10-12
Green Drake
Ephemera guttulata
mayflyJuneEvening#8-10Coffin Fly #8-10, Green Drake Hairwing #8-10, Green Drake Nymph #8-10
October Caddis
Dicosmoecus
caddisSeptember, OctoberAll Day/Evening#8-12Orange Stimulator #8-12, October Caddis Pupa #10, Morrish October Caddis Adult #10
Black Fly
Simulium
midgeMay, JuneAll Day#18-24Zebra Midge (Black) #18-22, Black Gnat #20-22, Griffith's Gnat #18-22
Golden Stonefly
Acronuria
stoneflyJune, JulyMorning/Evening#6-10Golden Stone Nymph #6-10, Kaufmann's Stone #8, Rogue River Stone #8

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