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Maine | North-central Maine / Penobscot County

Penobscot RiverWinn Boat Launch to Greenbush Boat Launch

A 37.5-mile river corridor from Winn (river mile 17) to Greenbush (mile 54.5), divided into multi-day sections. The trail describes Winn–South Lincoln (13 miles), South Lincoln–Merrill Brook (8 miles), then Howland–Greenbush (14 miles); take out above West Enfield Dam at Merrill Brook and arrange a land portage before relaunching at Howland.

Route location

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Plan this route

DistanceAbout 37.5 river miles
DifficultyModerate
Typical timeMulti-day staged trip
ShuttleCar shuttle
A Maine stream corridor bordered by forest.
Route photoMaine stream context; exact route not claimedPhoto by Scott Craig / U.S. Fish and Wildlife Service

Need to know

Why this call
This route is documented for planning, but does not receive a Paddle Today score.
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Route overview

Trip details

Access rules, camping, seasonal conditions and trip length.

Distance, difficulty, rules and camping
On-water distanceAbout 37.5 river milesWinn Boat Launch to Greenbush Boat Launch
DifficultymoderateMoving-water or open-water route requiring a complete float plan, conservative turnaround, and confirmed launch and take-out conditions.
ShuttleCar shuttleStage the take-out vehicle first, then return to the put-in. Confirm rural road conditions, parking, and vehicle security before launch.
PermitsCheck posted rulesFollow Maine boating, PFD, AIS, parking, land-management, and posted access rules; confirm any current local or utility restrictions.
CampingOptions nearbyThe trail lists designated campsites along this corridor. Confirm current permission, availability, fees, facilities, and access rules, and arrange the West Enfield Dam transfer before launch.
SeasonMay-OctLate spring through early fall is the practical window; cold water, storms, changing flow, and shoulder-season daylight remain material.

Plan ahead

Tomorrow and the weekend

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Plan

Plan your trip

Launch points, shuttle details, distance, and access notes.

Route logistics

Access and shuttle

A 37.5-mile river corridor from Winn (river mile 17) to Greenbush (mile 54.5), divided into multi-day sections. The trail describes Winn–South Lincoln (13 miles), South Lincoln–Merrill Brook (8 miles), then Howland–Greenbush (14 miles); take out above West Enfield Dam at Merrill Brook and arrange a land portage before relaunching at Howland.

Access map

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Start

Put-in

Winn Boat Launch
Open mapDirections to put-in

The endpoints are named in Maine DACF access records, but the record does not guarantee an open gate, exact carry path, parking, or shoreline condition.

Finish

Take-out

Greenbush Boat Launch
Open mapDirections to take-out

Do not use private frontage, bridge approaches, or industrial shoreline as an unplanned landing.

Road shuttle

Driving shuttle routeShuttle in Apple MapsOpenStreetMap
Access notes and hazards

Access caveats

  • The endpoints are named in Maine DACF access records, but the record does not guarantee an open gate, exact carry path, parking, or shoreline condition.
  • Do not use private frontage, bridge approaches, or industrial shoreline as an unplanned landing.

Watch for

  • mandatory take-out above West Enfield Dam at Merrill Brook and a planned transfer to Howland
  • multiple days, daylight, campsite availability, and rural shuttle logistics
  • wood, shallow sections, weather, and changing access notices

Plan this paddle

Choose your trip times

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Trip schedule

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Conditions

Water levels, gauge history, and hourly forecast

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Gauge detail

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Gauge

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Weather

Hourly forecast

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Route gallery

Photos

Check each caption: some photos show the surrounding area rather than this exact trip.

A Maine stream corridor bordered by forest.
Maine stream context; exact route not claimedPhoto by Scott Craig / U.S. Fish and Wildlife Service
U.S. Fish and Wildlife Service image; public domain; exact route not claimed

Sources

Data and sources

Read the access and hazard notes and check the linked guides. We do not issue a daily score for this trip.

NotesWhat to know before you go

These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.

  • Named route and endpointsWinn Boat Launch to Greenbush Boat Launch; about 37.5 miles

    The Penobscot River Paddling Trail access table places Winn at river mile 17 and Greenbush at mile 54.5. Its one-day trip guide lists Winn–South Lincoln at 13 miles, South Lincoln–Merrill Brook at 8 miles, and Howland–Greenbush at 14 miles, with Merrill Brook identified as the take-out above West Enfield Dam. The 37.5 figure is the river-mile corridor span and includes the dam interruption, not a continuous paddle track. USGS 01034500 is downstream proxy context only.

    Source

  • Live gauge postureUSGS 01034500, Penobscot River at West Enfield, ME

    Proxy station context: check which river and reach the station measures. Local tributaries, releases, ice effects, and reach-specific hydraulics can differ materially.

    Source

  • Access controlsNamed public, state, municipal, or managed access only

    Maine launch records provide the access inventory; exact carry paths, parking, fees, closures, and shoreline condition must be rechecked before launch.

    Source

  • Camping classificationon_route_campsite

    The trail lists designated campsites along this corridor. Confirm current permission, availability, fees, facilities, and access rules, and arrange the West Enfield Dam transfer before launch.

    Source

  • Safety postureReviewed planning route

    Wear a properly fitted PFD continuously, file a float plan, and carry communication and rescue equipment appropriate to the remoteness of the reach. Check the USGS trend, weather, water temperature, debris, ice effects, and same-day access notices. A favorable gauge number never overrides visual conditions.

  • Overlap decisionDistinct access-to-access itinerary retained

    The endpoint pair, trip length, or operational setting is materially different from the other Maine routes in this batch.

Verify it yourselfCheck the source links

Use these links to double-check the gauge, route details, and access notes before you head out.

Reports

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Keep exploring

More routes to check next

Compare another stretch on this river, or explore different rivers within 75 straight-line miles.

More in Maine

All 84 routes
Maine route guideBrowse every tracked Maine route.North-central Maine / Penobscot CountyJump to routes in this region.

More on Penobscot River

All 17
Bangor landing facility to Hampden public accessLower Penobscot Valley / Penobscot CountyModerate · About 9 river milesBangor landing facility to Verona public accessLower Penobscot Valley / Penobscot and Hancock CountiesModerate · About 17 river milesBrewer municipal public access to Bangor landing facilityGreater Bangor / Penobscot CountyModerate · About 5 river milesEddington north public access to Orrington public accessLower Penobscot Valley / Penobscot and Hancock CountiesModerate · About 11 river miles

Nearby routes within 75 miles

Piscataquis RiverMedford public access to Howland Piscataquis access · about 26 straight-line mi awayModerate · About 18 river milesPiscataquis RiverDover-Foxcroft carry-in to Medford public access · about 42 straight-line mi awayModerate · About 19 river milesSebec LakeDover-Foxcroft lake access to Sebec public access · about 44 straight-line mi awayModerate · About 12 river milesSaint Croix RiverLambert Lake public access to Dyer public access · about 45 straight-line mi awayModerate · About 9 river miles

Quick answers

Penobscot River paddling FAQ

What water level is best for the Winn Boat Launch to Greenbush Boat Launch route on the Penobscot River?

This planning route has no live Paddle Today score. Review the linked water-level sources, current access notices and route-specific hazards before travel.

Where does the Winn Boat Launch to Greenbush Boat Launch route on the Penobscot River start and end?

This route starts at Winn Boat Launch and ends at Greenbush Boat Launch, about 37.5 river miles on the water.

Is the Winn Boat Launch to Greenbush Boat Launch route on the Penobscot River suitable for beginners?

This is listed as a moderate route. Review the difficulty notes, hazards and current access conditions against your group's skills. No live score assesses this trip.

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