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Maryland | Washington County / Western Maryland

Potomac RiverLittle Tonoloway Boat Ramp / Hancock to Big Pool / Fort Frederick State Park

A bounded Class I Potomac moving-water reach from Hancock to the Fort Frederick/Big Pool area. The route includes a documented C&O launch, a Maryland DNR Potomac carry at the Fort Frederick park boundary, and a non-negotiable power-dam/portage hazard near Williamsport that must be scouted and treated as a hard route decision.

Route location

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Plan this route

DistanceApproximately 12 river miles, American Whitewater Potomac reach 0.35
DifficultyModerate
Typical time4–8 hours depending on stage
ShuttleCar shuttle
The historic Town Creek Aqueduct crosses the C&O Canal corridor beside the Potomac River in Maryland.
Route photoC&O Canal and Potomac River corridor at Town CreekPhoto by Wikimedia Commons

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 distanceApproximately 12 river miles, American Whitewater Potomac reach 0.35Little Tonoloway Boat Ramp / Hancock to Big Pool / Fort Frederick State Park
DifficultymoderateThe source describes recreational moving water, but shallow rock, current, cold water, debris, and bridge or access hazards remain material.
ShuttleCar shuttleStage at the Fort Frederick State Park/Potomac access and confirm the carry, then shuttle to Little Tonoloway in Hancock. Do not stage at the Big Pool lake ramp as a substitute for the Potomac take-out; allow time to scout the power-plant dam and maintain a hard daylight cutoff.
PermitsCheck posted rulesFollow Maryland DNR Fort Frederick rules, C&O Canal National Historical Park rules, Maryland boating/PFD requirements, park fees/hours, current access closures, and any high-water or dam warning. Gas-powered boats are not part of this paddle plan.
CampingOptions nearbyFort Frederick State Park has a campground near the Big Pool/Potomac endpoint; C&O hiker/biker camping is also available in the broader corridor. Confirm current park reservations, fees, hours, and whether camping logistics align with the Potomac carry. No riverbank camping is included.
SeasonMar-NovSpring through fall is the practical planning season, but Maryland water levels, recent rain, temperature, debris, and daylight control every launch decision.

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 bounded Class I Potomac moving-water reach from Hancock to the Fort Frederick/Big Pool area. The route includes a documented C&O launch, a Maryland DNR Potomac carry at the Fort Frederick park boundary, and a non-negotiable power-dam/portage hazard near Williamsport that must be scouted and treated as a hard route decision.

Access map

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Start

Put-in

Little Tonoloway Boat Ramp / Hancock
Open mapDirections to put-in

Little Tonoloway is an NPS-designated Potomac launch with trailer parking and a vault toilet. Confirm current road, parking, ramp, and river conditions.

Finish

Take-out

Big Pool / Fort Frederick State Park Potomac access
Open mapDirections to take-out

Fort Frederick DNR distinguishes the Big Pool lake ramp from the Potomac footpath. Store and use the Potomac carry coordinate as the endpoint anchor; do not present the lake ramp as river access.

Road shuttle

Driving shuttle routeShuttle in Apple MapsOpenStreetMap
Access notes and hazards

Access caveats

  • Little Tonoloway is an NPS-designated Potomac launch with trailer parking and a vault toilet. Confirm current road, parking, ramp, and river conditions.
  • Fort Frederick DNR distinguishes the Big Pool lake ramp from the Potomac footpath. Store and use the Potomac carry coordinate as the endpoint anchor; do not present the lake ramp as river access.
  • The direct Hancock gauge is upstream of the route and does not replace local inspection at the dam, portage, Fort Frederick carry, or take-out.

Watch for

  • USGS 01613000 stage, discharge, and trend
  • Williamsport power-plant dam, approach hydraulics, portage route, high water, debris, cold water, wind, and private-bank boundaries
  • C&O and Fort Frederick hours, fees, parking, carry surface, and the Big Pool/Potomac endpoint distinction

Plan this paddle

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Conditions

Water levels, gauge history, and hourly forecast

Check the forecast and local water levels before launching.

Gauge detail

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Gauge

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Weather

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Route gallery

Photos

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

The historic Town Creek Aqueduct crosses the C&O Canal corridor beside the Potomac River in Maryland.
C&O Canal and Potomac River corridor at Town CreekPhoto by Wikimedia Commons
Wikimedia Commons: public domain

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 moving-water corridorHancock to Big Pool/Fort Frederick, approximately 12 miles, Class I

    American Whitewater names the route, Hancock gauge, power-plant dam portage hazard, camping context, and Big Pool-area take-out.

    Source

  • Public accessNPS Little Tonoloway ramp to Maryland DNR Fort Frederick Potomac carry

    NPS documents the Hancock Potomac ramp; Maryland DNR documents Potomac access by footpath across from Beaver Pond parking and separately describes the Big Pool lake ramp.

    Source

  • Direct flow evidenceUSGS 01613000 Hancock; American Whitewater low-runnable context around 3.3 ft

    USGS provides live same-river stage/discharge context; American Whitewater provides the route-specific planning screen.

    Source

  • Dam/portage boundaryWilliamsport power-plant dam requires upstream caution and portage

    American Whitewater explicitly describes the dam and the need to approach from upstream with caution.

    Source

  • CampingFort Frederick State Park campground near the endpoint

    Maryland DNR identifies camping at Fort Frederick; current reservation, fee, and access status must be checked separately.

    Source

  • Live gaugeUSGS 01613000, Potomac River at Hancock, MD

    This is a direct same-river station. Readings are provisional and must be combined with trend and visual conditions.

    Source

  • Approved route imageryRights-cleared public-agency or public-domain corridor image

    Wikimedia Commons public-domain C&O/Potomac corridor image used as route context; it does not certify current flow, dam, carry, or access conditions.

    Source

Verify it yourselfCheck the source links

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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.

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Maryland route guideBrowse every tracked Maryland route.Washington County / Western MarylandJump to routes in this region.

More on Potomac River

All 14
Big Pool / Fort Frederick Campground to Williamsport River Bottom ParkWashington County / Western MarylandModerate · Approximately 16.7 river miles, American Whitewater Potomac reach 0.4Big Slackwater Boat Ramp to Taylors Landing Boat Ramp with Dam 4 portageMontgomery, Frederick, and Washington Counties / Central MarylandHard · Approximately 3.4 river miles downstream from C&O Canal mile 85.5 to mile 80.9, with a mandatory Dam 4 portageBond's Landing to Fifteen Mile Creek Boat Ramp / Little OrleansAllegany County / Western MarylandEasy · Approximately 9 river miles, Maryland DNR Green Ridge State Forest Bond’s Landing to Fifteen Mile Creek legBrunswick Boat Ramp to Point of Rocks Boat RampMontgomery, Frederick, and Washington Counties / Central MarylandModerate · Approximately 6.8 river miles downstream from C&O Canal mile 55.0 to mile 48.2

Nearby routes within 75 miles

Cacapon RiverFishers Ford Bridge public access to Cacapon Power Plant public access · about 15 straight-line mi awayEasy · 8.5 miConococheague CreekKemps Mill Park to Williamsport River Bottom Park · about 20 straight-line mi awayEasy · Approximately 4.5 miles from Kemps Mill Park to Williamsport River Bottom ParkCacapon RiverCacapon Crossing public access to Fishers Ford Bridge public access · about 21 straight-line mi awayEasy · 18 miCacapon RiverWV 127 Bridge public access to Cacapon Crossing public access · about 24 straight-line mi awayEasy · 9 mi

Quick answers

Potomac River paddling FAQ

What water level is best for the Little Tonoloway Boat Ramp / Hancock to Big Pool / Fort Frederick State Park route on the Potomac 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 Little Tonoloway Boat Ramp / Hancock to Big Pool / Fort Frederick State Park route on the Potomac River start and end?

This route starts at Little Tonoloway Boat Ramp / Hancock and ends at Big Pool / Fort Frederick State Park Potomac access, Approximately 12 river miles, American Whitewater Potomac reach 0.35 on the water.

Is the Little Tonoloway Boat Ramp / Hancock to Big Pool / Fort Frederick State Park route on the Potomac 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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