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Difficulty IV+
Length 4.2 Miles
Gauge WEST BRANCH OSWEGATCHIE RIVER NEAR HARRISVILLE NY
Flow Range 600 - 3000 CFS
Flow Rate as of: 1 hour ago 1820 [CFS] ℹ️
Reach Info Last Updated 04/05/2016 8:58 pm

River Description


Directions:
Put In: Heading north out of Degrasse on Clare Rd. for 4-5 miles to the yellow/brown sign on the left for the trail to Lampson's Falls. It's probably about a half-mile easy walk to the water from there.
Take Out: On Route 24 just north of the town of Russell boaters will see a NY state sign for Downerville, a no-longer existent town at the confluence of the N. branch of the Grasse with the Main branch. Coming from Russell, turn right (SE) onto dirt/gravel Donnerville road, after old cemetary on left, take next right. Follow along beaver pond then downhill to confluence. About a mile and a half from main road to take-out.  


Description:
The trail comes out right at Lampson's Falls, which is Fowlersville-sized but has a bunch of flakes sticking up that don't look friendly at all; judge for yourself, I had no issues continuing down the trail to the bottom. From the pool below you have some flatwater to warm up on before dropping into a nice pool-drop rhythm. Most of the drops are worth scouting just to see the assortment of possible lines that most offer up. At low water this seemed like a nice creeking progression from Taylorville on the Beaver, with a few drops which were definite steps up. Nothing is mandatory and everything was pretty easy to scout/portage. The last mile stretch the river starts to widen and become more small rapids. When you come to the Confluence of the North Branch on river right, there will be a small path through the woods which will take you back to the parking lot. This section can be connected and run all the way down to Russell.

 

Canton - Cranberry Lake Area Reaches

Boland Creek                                                   Elm Creek 

Grass (1. Lampsons Falls to Downerville)       Grass (2. Downerville to Russell)      

Grass (3. Morley to Massena)                    Grass (4.Woods Bridge Road to Route 47)     

Grass, Middle Branch                                 Grass, North Branch   

Grass, Upper South Branch                        Grass, Lower South Branch (Twin Falls)         

Oswegatchie, E. Branch (2.)                           Oswegatchie, E. Branch (3.)

Oswegatchie, W. Branch                                   Plumb Brook

 

 

Potsdam - Malone Area Reaches

Chateaugay                                                    Deer (Dickinson Center)

Deer (Dickinson Center to Lawrenceville)       Grass (1. Lampsons Falls to Downerville)

Grass (Sec. 3)                                                Grass (Sec. 4)

Jordan                                                             Little Trout

Marble                                                             Meacham Lake Outlet

Raquette Sec. 3) Hannawa Falls                    Raquette 2) Piercefield to Parmenter Site

Raquette Sec. 4) Stone Valley                        Salmon

Salmon (Chasm Falls)                                     St. Regis

St. Regis, E. Branch                                        St. Regis, Middle Branch (Sec. 1)

St. Regis, Middle Branch (Sec. 2)                   St. Regis, Middle Branch (Sec. 3)

St. Regis, Middle Branch (Sec. 4.)                  St. Regis, W. Branch (Sec. 1)

St. Regis, W. Branch (Sec. 2)                          St. Regis, W. Branch (Sec. 3)

Trout Brook

 

Google Map of New York Whitewater

New York Whitewater Paddlers Facebook Group

Rapid Descriptions

Old Bridge

Class - III Mile - 0.75

This is the first Rapid of the section, after a moderate flatwater paddle from Lampson Falls. The gradient drop is easily seen from above as well as remants of an old bridge. Scouting is best from river left, it is also possible to boat scout.

Thanks

Class - V Mile - 0.8

 After the old bridge pool, This will be the next horizon line and is one of the largest sections on this section. It changes greatly which varing water levels from a flaky slide with large curling waves to large waves and holes. To scout, take on on river left of the island. Portage is a neccessary for most paddlers with the easiest along river left, along the game trail in the woods.

No Thanks

Class - IV+ Mile - 0.82

This is immediately below Thanks, at low levels this can be one of the best rapid but as the flow increases the holes become stickier and stickier. Scout along the same path as with Thanks, portaging too can follow this path

Dan's Hole

Class - III+ Mile - 1

This is the next drop after No Thanks pool, this rapid also varies greatly as does the flows. At low levels this is a small hole but at high flows it become sticky with large boils and water pushing into the wall. Scouting can be either left or along the rock pennisula. A sneak line is available along the far right at high levels.

S-Turn

Class - III Mile - 1.25

After some flatwater the river starts dropping gradient again. This is a large S-Turn in the river. This can scouted river right from the large rock abutment or boat scouting.

Snot Rocket

Class - III+ Mile - 1.35
Rapid Thumbnail Missing

The river splits with a majority going left over a small waterfall, while right is a tight shoot with a hole at the bottom. This right section is runnable at all levels. Scouting can be left for the falls, and either on the island or right for the shoot.

The Slots

Class - III Mile - 1.55

At low water this rapid is a bunch on low angle slides, with multiple routes. At high water, it becomes a small slide into a hole, similar to the upper part of Sinclair Falls (Twin Falls section). Scouting can be down river left as well as a path to portage.

There You Go

Class - III+ Mile - 1.6
Rapid Thumbnail Missing

After the slots the river splits again around an island with the majority of the water flowing right, the right side has a small water fall with different paths, at low level this is the easier drop. The left has a small 45 foot shoot. At low water this shoot is either dry or unrunnable. Scouting is best on the island if running the rapid or left with portaging the easiest along the left side.

North Country Boof

Class - IV Mile - 1.8

This is the final large drop. The river again splits with a large amount of water flowing right.  The right side becomes difficult to run at high water, for this side scout right. The left channel has nice 7 foot waterfall, scouting for this is best left, as well as portaging. The rock on the river next to the falls (seen in picture) is a sive, this can be seen especially at low water.

Comments

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Andy Cook
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12 years ago

Ran this section on November 5, 2006. Level was around 600 cfs. on the gauge. First couple drops were a lot of fun, next few miles a bit scrapy and then the runout was pretty tedious. Did a video tour; check it out: http://www.flowpaddlers.org/users/andy/speced/lampson/lampson.htm

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Dan McDonnell
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10 years ago

On Route 24 just north of the town of Russell boaters will see a NY state sign for Downerville, a no-longer existent town at the confluence of the N. branch of the Grasse with the Main branch. This put-in/take out spot gives boaters at low water a chance to get off the river before the scrappy section to Russell. It's also the take-out, obviously for those boating the North Branch. It's also a great place for boaters at flood stage to put-in and ride the haystacks to Russell. Coming from Russell, turn right (SE) onto dirt/gravel Donnerville road, after old cemetary on left, take next right. Follow along beaver pond then downhill to confluence. About a mile and a half from main road to take-out.

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n/a
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6 years ago

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Gage Descriptions

Season: April and May are generally the best months for the Grass, but Oct and Nov also offer windows of boatable flows following three or four days of good rain.

Flows: The USGS gauge on the Oswegatchie in Harrisville provides an "approximation". The benchmarks below have many variables, so make sure you assess each drop yourself. I

Below 600cfs  - You will scrape in numerous areas especially in the lower section, some drops may not be runnable. However, the holes will be tame.

Above 2000cfs- The holes start to get sticker, portaging may be necessary for some drops.

If Harrisville guage is dropping add 150 cfs to the flows above.

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Directions Description


Put In: Heading north out of Degrasse on Clare Rd. for 4-5 miles to the yellow/brown sign on the left for the trail to Lampson's Falls. It's probably about a half-mile easy walk to the water from there.
 

Take Out: On Route 24 just north of the town of Russell boaters will see a NY state sign for Downerville, a no-longer existent town at the confluence of the N. branch of the Grasse with the Main branch. Coming from Russell, turn right (SE) onto dirt/gravel Donnerville road, this is just before a Transportation facility center, Continue on Donnerville road until you see an old cemetary on left, take the next right. Follow along the beaver pond, staying right at the fork then downhill to confluence. It is about a mile and a half from main road to take-out.

The road is shown on the map is in the wrong spot and is actually above the confluence of the north and main branches not below.

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Date Flow Result Factor  
2014-05-11 High Fatality Other Read More
2002-06-15 n/a Fatality Solo Paddling Read More

Alerts

News

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Moose River Video

2011-01-18 00:00:00-05
Mark Singleton

2010 marked the 25th anniversary of protecting the Black and Moose rivers!  View an online video documentary on the Moose River and the early role that American Whitewater played in protecting this amazing river.

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