Tailwater · Mixed · Maine

Kennebec River — East Outlet

Kennebec River — East Outlet terrain map

The East Outlet carries Moosehead Lake's cold water down to Indian Pond, and it's one of Maine's most reliable and best-loved salmon and brook trout reaches — a short, powerful river with a clear, quotable rulebook that makes it easy to fish right.

Good · Brook Trout
Slate Drake · 10-14
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp10.3°C
  • ClarityClear
Today's fly
SD
Slate Drake10-14
Proven pattern for this period
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp10.3°C
ClarityClear
Weather15°C
WindW 12 km/h
Pressure1015 hPa
Rain · recent0.0 mm
Rain · ahead2.2 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Brook Trout
Ideal
10°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brook Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Good — water temperature is right today, though time of day could be better.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
SulphurHatch
2
3
2
Trico (Eastern)Hatch
2
3
3
2
Eastern Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Eastern Summer BWO (Drunella)Hatch
2
3
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brook Trout fly box
Local fly shops: New England Fly Co.
Permits & access
Permit required — see local rules.
  • FLY-FISHING-ONLY Moosehead to the Indian Pond red markers; one-fish total daily bag; 14" minimum on brook trout and landlocked salmon — verify exact wording/boundaries against Maine DIFW
  • DAM-RELEASE SAFETY: flow set by the Moosehead/East Outlet release — check Brookfield SafeWaters before wading.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
West Branch Penobscot River
52 km
Brook trout
About this water

The East Outlet carries Moosehead Lake's cold water down to Indian Pond, and it's one of Maine's most reliable and best-loved salmon and brook trout reaches — a short, powerful river with a clear, quotable rulebook that makes it easy to fish right. The whole run from Moosehead down to the red markers at Indian Pond is fly-fishing-only, with a one-fish total bag and fourteen-inch minimums on brook trout and landlocked salmon, which keeps the quality high. Salmon hold in the fast water and chase smelt out of the lake; brookies sit in the pockets and seams. It's release-driven, so the flow tracks the dam, and the heavier releases make it a wade-with-respect river.

  • Mixed
Water quality · US Clean Water Act
  • Aquatic life: Supporting
What this classification means

EPA ATTAINS assessment unit 'Kennebec R' (ME0103000312_336R), 2024 Integrated Report. Aquatic Life use: Fully Supporting. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · ME0103000312_336R

The full read · show the working · for Brook Trout · confidence 75%
How the 75 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure75 × 7%5.3
Insect activity47 × 12%5.6
Conditions total= 75
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout1 April → 30 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts