Kentucky | Hart County / Mammoth Cave

Green River

H.H. Wilson Park Ramp to Dennison Ferry Carrydown

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DifficultymoderateThis is a flatwater-style Green River route, but 24.6 miles, limited bailout options, private banks, open-river wind, and a day-use-only park finish make it a committed moderate outing rather than a casual family float.
PermitsNone notedNo permit is required for a same-day paddle, but this route finishes inside Mammoth Cave National Park. Follow Kentucky boating rules, park signs, and standard USCG PFD requirements, and do not assume improvised bankside camping is legal.
CampingOptions nearbyTreat this as an overnight-capable route only if you plan around real legal support. Stovall Park primitive camping sits on the corridor early in the run, but Dennison Ferry is day-use only and private banks farther downstream should not be treated as legal campsites.
SeasonMar-NovThis long Hart County to Mammoth Cave route is most practical in spring through fall when the Munfordville gauge is stable and the group has full daylight. Lower water slows the day substantially, while storms or releases can raise debris before the park finish.

Dial in the shuttle, distance, and access.

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Access, shuttle, and map

Launch at H.H. Wilson Park and take out at Dennison Ferry for a very long Green River day bridging Hart County and Mammoth Cave. Use the Munfordville gauge and expect a slower, more consequential outing whenever the discharge sits below KDFWR's 300 to 600 cfs good band.

Start

Put-in

H.H. Wilson Park RampOpen map

H.H. Wilson Park Ramp has a drop at the end of the concrete. Launch carefully and do not back farther than the waterline allows.

Finish

Take-out

Dennison FerryOpen map

Dennison Ferry is day-use only and finishes with a carry-down/carry-up park access rather than a simple motorboat ramp. Save energy for the take-out.

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Access caveats and watch for

Access caveats

  • H.H. Wilson Park Ramp has a drop at the end of the concrete. Launch carefully and do not back farther than the waterline allows.
  • Dennison Ferry is day-use only and finishes with a carry-down/carry-up park access rather than a simple motorboat ramp. Save energy for the take-out.
  • This route effectively combines the official Wilson-to-Stovall and Stovall-to-Dennison Pool 6 segments, so use the shorter Green River family routes instead if the group is not comfortable with an all-day commitment.
  • The route uses the direct Munfordville gauge for the upstream corridor, but weather trend, fresh wood, and daylight are decisive on a float this long.

Watch for

  • Low water below 300 cfs, when this long route can become unreasonably slow for a same-day plan.
  • High water above 600 cfs, when broad-river current, debris, and the Mammoth Cave finish become less forgiving.
  • Fatigue, exposed sun, broad-river wind, limited bailout options, and reduced cell service closer to Mammoth Cave.
  • Muddy or slick footing at Dennison Ferry plus any fresh strainers or floating debris after rain.

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Gauge, thresholds, and timing

These are the live readings and threshold notes behind today's score.

Gauge siteGreen River at Munfordville, KY
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Target band300 cfs to 600 cfs
Low threshold300 cfs
High threshold600 cfs
Data confidence behind the rangeOfficial data source
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Main source behind this scoreKDFWR recommended river levels for Green River at Munfordville
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What to know before you go

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

  • Official route segmentH.H. Wilson Ramp to Dennison Ferry, about 24.6 mi

    KDFWR lists H.H. Wilson Ramp to Stovall Park Ramp as 3.6 miles and Stovall Park Ramp to Dennison Ferry as 21.0 miles, supporting a combined public float of about 24.6 miles.

    Source

  • Official level band300-600 cfs good

    KDFWR rates the Green River gauge at Munfordville as Low below 300 cfs, Good from 300 to 600 cfs, and High above 600 cfs.

    Source

  • Put-in accessH.H. Wilson Park Ramp, 37.2979, -85.8506

    KDFWR identifies H.H. Wilson Park as a free paved single-lane ramp with unpaved parking, year-round availability, and no camping.

    Source

  • Take-out accessDennison Ferry Carrydown, 37.2174, -86.0493

    KDFWR identifies Dennison Ferry as a free day-use-only carry-down access inside Mammoth Cave National Park with unpaved parking and no camping.

    Source

  • Live-gauge supportUSGS 03308500 at 2960 cfs / 6.98 ft

    USGS Water Services returned same-day July 11, 2026 discharge and stage values for Green River at Munfordville during this run. The discharge is far above the KDFWR good band, so this route needs honest higher-water caution today.

    Source

  • Route characterBroad pools, springs and caves corridor, park carry-down finish

    KDFWR describes Pool 6 as a scenic section with numerous springs, caves, and wildlife, while Dennison finishes inside Mammoth Cave National Park at a day-use-only carry-down with high muddy banks and park infrastructure.

    Source

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Green River paddling FAQ

What water level is good for paddling Green River?

Paddle Today watches Green River at Munfordville, KY and treats 300 cfs to 600 cfs as the target band for this route, with weather and recent trend included in the final score.

Where does this Green River route start and end?

This route starts at H.H. Wilson Park Ramp and ends at Dennison Ferry, about About 24.6 mi on the water.

Is this Green River route good for beginners?

This is listed as a moderate route. Expect more planning than an easy float, and use the live score, route notes, and source links before committing.

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Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.