Reservoir Tailwater · Hudson Highlands Metamorphic · New York

East Branch Croton River

East Branch Croton River terrain map

The East Branch Croton is one of the most useful non-Catskills trout options for New York metro anglers: small, technical, close enough for a short session, and tied to the complex access/rules reality of the Croton reservoir system.

Poor · Rainbow Trout
Sulphur Comparadun · 16-18
Poorlive now
Not the day for it
River dropping into shape after a lift. Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
80% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp20.0°C
  • ClarityUnfishable
Today's fly
SC
Sulphur Comparadun16-18
High-confidence seasonal pick
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp20.0°C
ClarityUnfishable
Weather18°C
WindN 13 km/h
Pressure1015 hPa
Rain · recent0.3 mm
Rain · ahead0.0 mm

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

Water temperature for Rainbow Trout
Warm — slow
20°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow 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
Water at 20°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Beyond the hatch · worth watchingambient prey

Hatch predictions

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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
2
1
Quill GordonHatch
2
2
Blue QuillHatch
2
3
2
HendricksonHatch
2
2
Eastern March BrownHatch
2
2

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

Ranked for today
Rainbow Trout fly box
Permits & access
Permit required — see local rules.
  • New York licence required
  • Verify DEC category, access and watershed rules before launch.
What's coming
Plan ahead
5-day outlook
Water here around 20°C. Nothing cooler within range — carry a thermometer.
About this water

The East Branch Croton is one of the most useful non-Catskills trout options for New York metro anglers: small, technical, close enough for a short session, and tied to the complex access/rules reality of the Croton reservoir system. It should be modelled as a legal-access and flow-aware day-trip water rather than a big destination river.

  • Hudson highlands metamorphic
Water quality · US Clean Water Act
  • Aquatic life: Not assessed
What this classification means

EPA ATTAINS assessment unit 'East Branch Croton, Middle, and tribs' (NY1302-0055), 2022 Integrated Report. Aquatic Life use: Insufficient Information. 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) · NY1302-0055

The full read · show the working · for Rainbow Trout · confidence 80%
How the 20 is built — score × weight = contribution
Temperature44 × 28%12.3
Flow15 × 22%3.3
Clarity10 × 18%1.8
Feeding Time45 × 13%5.9
Pressure75 × 7%5.3
Insect activity50 × 12%6.0
Limiting factor: Water is unfishable — too coloured for Rainbow Trout= 35
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
What would change the calculation
Cooler water — back toward the 10–18 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 April → 15 October
Related guides
Euro Nymphingsubsurface methods
Booking & contacts