Watershed Knowledge Base

Explore New England's coldwater rivers

Search live USGS flow rates, public access beats, and seasonal regulations across Maine, New Hampshire, Vermont, Massachusetts, Connecticut, and Rhode Island.

Maine
850 CFS
Kennebec River (East Outlet)
Landlocked Salmon, Wild Brook Trout
Current Status:Optimal Wadable

A legendary tailwater fishery emerging from Moosehead Lake offering consistent coldwater dry fly action and deep nymph seams throughout the season.

Key Hatches

Hendrickson (May), Green Drake (June), Caddis (July-Aug)

New Hampshire
320 CFS
Upper Connecticut River
Wild Brook Trout, Rainbow Trout, Landlocked Salmon
Current Status:Prime Cold Flow

The trophy stretch between First Connecticut Lake and Lake Francis, renowned as the 'Trophy Stretch' with classic pocket water and slick glides.

Key Hatches

Blue-Winged Olive (Apr-May), Hexagenia (July), Terrestrials (Aug)

Vermont
185 CFS
Battenkill River
Wild Brown Trout, Native Brook Trout
Current Status:Clear & Technical

An iconic spring-influenced freestone river famed for super-wary wild browns, crystal clear undercut banks, and demanding delicate tippet presentations.

Key Hatches

Hendrickson (May), Sulphur (June), Trico (July-Aug)

Massachusetts
620 CFS
Deerfield River
Brown Trout, Rainbow Trout
Current Status:Hydro Peak Alert

A high-gradient tailwater with dramatic gorge scenery flowing through the Berkshire foothills, managed via hydroelectric dam release schedules.

Key Hatches

March Brown (May), Light Cahill (June), Golden Stonefly (July)

Connecticut
240 CFS
Farmington River (West Branch)
Wild Brown Trout, Rainbow Trout
Current Status:Ideal Tailwater Flow

New England's premier year-round tailwater holding high trout densities per mile, celebrated for its steady bottom-draw coldwater temperatures.

Key Hatches

Early Black Stonefly (Feb-Mar), Ephemerella subvaria (May), BWO (Year-round)

Rhode Island
95 CFS
Wood River
Native Brook Trout, Stocked Brown Trout
Current Status:Gentle Spring Run

Rhode Island's crown jewel coldwater stream meandering through Arcadia Management Area with forested pine canopies and quiet pocket pools.

Key Hatches

Blue-Winged Olive (Apr), Tan Caddis (May-June), Micro Terrestrials (Summer)

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Current Watershed Flows & Hatches

Real-time stream telemetry, active insect emergence, and verified member observations across premier New England waters.

OptimalAdvisoryHigh Water
Farmington River
Riverton & Pleasant Valley, CT
Optimal
USGS Flow
285 CFS
Median: 270 CFS
Water Temp
54°F
4.5 ft Gin Clear
Active HatchSize #14 – #18

Hendrickson & Blue-Winged Olive

Dan Malloy (Guide)35 mins ago
Deerfield River
Charlemont & Fife Brook, MA
Stained
USGS Flow
780 CFS
Median: 600 CFS
Water Temp
51°F
2.5 ft Slight Tannin
Active HatchSize #12 – #16

Early Black Caddis & Stoneflies

Sarah Lindgren2 hours ago
Kennebec River
East Outlet & Moosehead, ME
Optimal
USGS Flow
1450 CFS
Median: 1500 CFS
Water Temp
49°F
5.0 ft Mountain Clear
Active HatchSize #12 – #14

Quill Gordon & Chimarra Caddis

Capt. Ben Crawford3 hours ago
Battenkill River
Arlington & Manchester, VT
Optimal
USGS Flow
340 CFS
Median: 350 CFS
Water Temp
53°F
4.0 ft Crisp Limestone
Active HatchSize #14 – #16

Parachute Adams & Hendrickson Emergers

Tom Alden4 hours ago
Swift River
Belchertown & Y-Pool, MA
Low & Clear
USGS Flow
88 CFS
Median: 95 CFS
Water Temp
47°F
6.0 ft Ultra Clear
Active HatchSize #22 – #28

Midges & Micro Baetis

Rachel Vance5 hours ago
Housatonic River
Cornwall Bridge, CT
Blown Out
USGS Flow
1850 CFS
Median: 950 CFS
Water Temp
56°F
1.0 ft Heavy Silt
Active HatchSize #04 – #08

High Water Streamers

Greg Thorne6 hours ago
Telemetry feeds sync every 15 minutes with USGS hydrological stations and angler log submissions.
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