New York | St. Lawrence County / Clare

Middle Branch Grass River

Middle Branch Hand Launch to Lampson Falls Waterway Access Site

Route planning details, access notes, and local verification guidance.

Route location

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DistanceAbout 4 planning river miles from Middle Branch Hand Launch to the Lampson Falls access boundary
DifficultyModerate
Typical timeAbout 2–4 hours depending on current
ShuttleCar shuttle
The Grass River at the USGS Chase Mills monitoring station in New York.
River contextGrass River at Chase Mills; same-river proxy context river-level context — not necessarily this exact reach.Photo by U.S. Geological Survey

Need to know

Why this call
This route is documented for planning, but does not receive a Paddle Today score.
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Gauge history and hourly forecast

Use the gauge context and hourly forecast to verify local conditions before launching.

Gauge history & hourly forecastDetailed view

Recent trend

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Hourly forecast

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Short-route forecast

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Quick facts and what's next

Distance, difficulty, shuttle basics, and the near-term outlook before you commit to the drive.

DifficultymoderateThe documented reach is flatwater, but the 300-foot and 0.4-mile carries, remote Adirondack setting, cold water, wind, wood, and mandatory take-out before Lampson Falls make this more than a simple roadside float. The falls and water below the route boundary require a separate advanced review.
PermitsCheck posted rulesConfirm current DEC state-land rules, seasonal access and road status, designated-site availability, the three-night/group-size permit rule for at-large camping, boating/PFD requirements, and all posted restrictions before departure.
CampingOptions nearbyThe Grass River Complex documents designated primitive tent sites in the Lampson Falls parcel and nearby Grass River areas, but this route does not claim an endpoint campsite or unrestricted riverbank camping. Use only a confirmed designated site or lawful at-large camping at least 150 feet from roads, trails, and water, subject to current DEC rules, closures, and permits.
SeasonMay-OctThis Adirondack flatwater reach is most suitable during the open-water season. Spring rises, late-summer low water, cold water, wind, strainers, remote access, and changing state-land conditions can still make the route unsuitable; check the downstream proxy trend and local water conditions before launching.

Upcoming outlook

These are early planning reads. Re-check live conditions before you commit to the drive.

TomorrowChecking

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WeekendChecking

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Plan your trip

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

Access and shuttle

A moderate planning-only Middle Branch Grass River flatwater reach between two current NYSDEC access anchors. NYSDEC describes a roughly four-mile flatwater section between the Middle Branch Hand Launch and the rapids/falls near Lampson Falls, and separately identifies a 300-foot carry at the upstream hand launch and a 0.4-mile carry from the Lampson Falls trailhead to the waterway access. The route ends at the Lampson Falls boundary and does not claim a runnable passage through the falls or the more challenging water below them.

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Start

Put-in

Middle Branch Hand Launch
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Both stored endpoints follow current NYSDEC Grass River Complex access-area coordinates. The Middle Branch point includes a documented 300-foot carry, and the Lampson Falls point is a trailhead anchor with a documented 0.4-mile carry; neither coordinate is presented as a surveyed dock or exact waterline position.

Finish

Take-out

Lampson Falls Trailhead / Waterway Access Site
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The route uses the documented flatwater reach and ends at the Lampson Falls access boundary. It intentionally excludes Lampson Falls and the more challenging downstream water, which require separate hazard, portage, and take-out verification.

Plan this segment

Pulling access map tiles. Usually under 5 seconds.

Access caveats and watch for

Access caveats

  • Both stored endpoints follow current NYSDEC Grass River Complex access-area coordinates. The Middle Branch point includes a documented 300-foot carry, and the Lampson Falls point is a trailhead anchor with a documented 0.4-mile carry; neither coordinate is presented as a surveyed dock or exact waterline position.
  • The route uses the documented flatwater reach and ends at the Lampson Falls access boundary. It intentionally excludes Lampson Falls and the more challenging downstream water, which require separate hazard, portage, and take-out verification.
  • The four-mile distance is an approximate planning value from the DEC description, not a surveyed trace. Carries, wind, scouting, and the exact waterline can materially increase time and distance.
  • Designated campsites, at-large camping, parking, carries, and access rights are governed by current DEC rules and posted signs. Do not infer a landing right from a river-visible shoreline.

Watch for

  • USGS 04265432 unavailable, rapidly changing, or inconsistent with local Middle Branch conditions
  • spring rises, late-summer low water, cold water, wind, strainers, shallow gravel, remote rescue, and daylight lost to the carries
  • Middle Branch parking and 300-foot carry, Lampson Falls parking and 0.4-mile carry, exact waterway landing, posted state-land rules, and the mandatory Lampson Falls take-out boundary

Data and sources

See the gauge, weather, and source notes behind today's call.

Read quality
Checking live inputs.

Pulling the latest gauge and weather. Usually under 10 seconds.

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Today's evidence strength is checking

Evidence strength mostly comes down to three things: how direct the active gauge is, how clear the range is, and how fresh the data is.

  • Checking evidence-strength notes.
Gauge, thresholds, and timing

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

Gauge siteGrass River at Chase Mills, NY
Gauge heightChecking
DischargeChecking
24h trendChecking
24h changeChecking
Current bandChecking
Rain last 24hChecking
Rain last 72hChecking
Air tempChecking
Water tempChecking
WindChecking
GustsChecking
Rain timingChecking
Ideal rangeNeeds paddler reports
Known low-water floorNot calibrated yet
High thresholdNot calibrated yet
Evidence strength behind the rangeOfficial and local sources
Gauge observedChecking
Paddle Today updatedChecking
Main source behind this scoreNo numeric go/no-go threshold published; NYSDEC describes about four miles of Middle Branch flatwater between the Middle Branch access and the rapids/falls boundary, so use the live downstream same-river proxy only as broad context plus local visual inspection
Gauge sourceChecking
Weather sourceChecking
Rainfall sourceChecking
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.

  • Current public endpoint chainMiddle Branch Hand Launch and Lampson Falls Trailhead / Waterway Access Site

    NYSDEC Grass River Complex lists both access areas, the 300-foot upstream carry, and the 0.4-mile Lampson Falls carry.

    Source

  • Flatwater reach boundaryAbout four miles of Middle Branch flatwater between the access and the rapids/falls boundary

    NYSDEC describes the Middle Branch flatwater opportunity and separately identifies more challenging water below Lampson Falls; this route stops at the falls access.

    Source

  • Camping postureDesignated primitive tent sites in the Lampson Falls parcel and wider Grass River Complex

    DEC documents designated sites and state-land camping rules, but no endpoint campsite is substituted for the access anchors.

    Source

  • Proxy live gaugeUSGS 04265432 Grass River at Chase Mills

    The station is live and same-river but downstream; use it only as broad trend context and make local visual conditions controlling.

    Source

  • Route imageUSGS Grass River at Chase Mills photograph used as clearly labeled same-river proxy context

    The presentation image is downstream same-river context and does not claim to depict the Middle Branch flatwater or either carry.

    Source

  • Same-river proxy gaugeUSGS 04265432, Grass River at Chase Mills, NY

    USGS 04265432 at Chase Mills is a live downstream Grass River proxy with current discharge and gage height, but it is materially downstream of the Middle Branch section. Tributary inflow, rainfall, temperature, wood, wind, and local channel shape can differ substantially; no numeric threshold is asserted.

    Source

  • Safety and river conditionsCheck live gauge, recent rainfall, trend, debris, bridges, and access conditions before launch

    NYSDEC Grass River Complex and its linked safety material warn that conditions change rapidly and require local inspection.

    Source

  • Image decisionApproved watershed/proxy-gauge context image used for route presentation

    The image is clearly labeled as watershed/proxy-gauge context and does not claim to depict this exact reach.

    Source

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Middle Branch Grass River paddling FAQ

What water level is good for paddling Middle Branch Grass River?

Paddle Today watches Grass River at Chase Mills, NY and uses Not calibrated yet as the conservative low-water floor for this route. The ideal range still needs more paddler reports.

Where does this Middle Branch Grass River route start and end?

This route starts at Middle Branch Hand Launch and ends at Lampson Falls Trailhead / Waterway Access Site, about About 4 planning river miles from Middle Branch Hand Launch to the Lampson Falls access boundary on the water.

Is this Middle Branch Grass 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.

See something outdated?

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