This photo needs editing.
Difficulty II at this flow (II-III normally)
Length 2.9 Miles
Flow Range 2.60 - 6.00 FT
Flow Rate as of: 1 hour ago 2.42 [FT] ℹ️
Reach Info Last Updated 07/06/2013 11:14 am

River Description

The description here is from the put in along state route 302 about two miles west from the intersection of state route 3 in Twin Mountain.  Look for a convenient riverside pull off.  Alternatively, you can access the river close to the route 3 intersection and run the upper part.  This adds 2 to 3 miles of class I-II river good for a warm up before encountering the continuous class II and III waters below. 

The river starts with typical boulder strewn class II  then builds up to a more difficult class III- drop called Boat Breaker just half a mile upstream of the take out at Pierce bridge. 

Most of the river is secluded and out of site of the road with tall northern spruce along the banks.  There are occasional camps along the way.

Technical info

Put in elevation........1286'
Take out elevation......1167'
Total drop..............119'
1st mile................46'
2nd mile................30'
2.9 mile................43' (48' average)
Average drop/mile.......41'
Distance................2.9 miles
River width average.....70'
River geology...........Small to medium granite boulders
River water quality.....good to excellent, clarity good.
Scenery.................Nice Mountain scenery, most of this stretch runs away
                        from the road.
Wildlife................Deer, hawks, moose, beavers, mink. 

Rapid Descriptions


default user thumbnail
Stephen Jacques
8 years ago

Post Irene update. Carl F and I ran this section on Monday Oct 2nd at 4.07 ft on the gage. The run is currently clear of strainers and debris. We had an enjoyable run. Lots of surf and technical eddy hopping. Enjoy, Steve Jacques, Bartlett, NH

Gage Descriptions

Historical Flow Information

Historical Dates: Mean High Water Date: April 23rd / 707 cfs Mean Low Water Date: August 27th/ 63 cfs Based on 67 years of flow information
The table above gives the historical mean high and low flow dates for this particular stretch of river. This information is extrapolated from the USGS database.

USGS gauge located at the takeout on river left. The Ammonoosuc starts high up on Mt Washington (6288') and runs later in the season than most other White Mountain rivers. Late April and early May is generally the high water period. Forecast

River Flow information

Gauge: USGS (Bethlehem) Minimum level: 3.1?/429 cfs

Low: 3.7?/660 cfs

Medium: 5.0?/1380 cfs

High: 5.5?/1800 cfs

Waterline: 1-800-452-1737 site code: 331114

Directions Description

We have no additional detail on this route. Use the map below to calculate how to arrive to the main town from your zipcode.

No Accident Reports



article main photo

Protecting Access to New Hampshire Rivers

Robert Nasdor

Northeast boaters can celebrate that another beloved whitewater gem has been protected. Paddlers on the Winnipeseaukee River are now assured that the put-in on the Lower Winni in Northfield, NH will be forever protected thanks to the donation of a parcel from Gloria Blais in memory of her husband Roger. Gloria donated the land to the Town of Northfield for the purpose of assuring that future generations of boaters will have access to the river. Protecting river access to the Winni is part of an ongoing effort by AW in the northeast region to protect river access.

article main photo

Bellows Falls (VT) Flow Study Reveals Hidden Whitewater

Robert Nasdor

A hardy group of northeast boaters climbed into the natural river channel below a hydropower dam to participate in a flow study designed to assess whether whitewater flows should be restored to this dewatered river reach on the Connecticut River. While significant obstacles remain, this site has the potential for providing instruction, playboating, and a big water feature that that could be run throughout much of the year and provide a much needed boost to the local economy. 

article main photo

AW, MVP Protect Land and Access on the Contoocook River (NH)

Robert Nasdor

American Whitewater and Merrimack Valley Paddlers have reached an agreement to purchase a 10-acre parcel fronting on Contoocook River in Henniker, NH. The land serves as an important launch point for whitewater paddlers enjoying the popular section of the river that runs from Hillsborough to Henniker. This section of the Contoocook River contains rapids ranging in difficulty from Class II to Class IV.


Skip Morris


Mark Lacroix


Revision #Revision DateAuthorComment
1190949 11/05/06 Skip Morris n/a
1202355 07/06/13 Mark Lacroix Added more info/picture