Ashuelot

1. Upper Ash(Marlow to Gilsum Gorge)

Reach banner
DifficultyIII-IV
Length5.6 mi
Avg Gradient64 fpm
GaugeAshuelot River Near Gilsum, Nh
Flow Rate as of 48 minutes
171 cfsbelow recommended
Reach Info Last UpdatedDecember 20, 2023

River Description

Thanks to Allan Berggren for the following information

The Ashuelot is the quintessential 'step-up-to-Class III' stream. It has 3-ft. drops, sometimes in complex, with plenty of recovery pools. It has, in addition, a Class IV Surprise at the top and a IV- gorge at the bottom (at low levels). At splashing 7 on the Gilsum gauge, Surprise has monster holes, and the gorge goes thrashing around a corner, splits over a knife-edge, etc., etc. What remained was four miles of quite continuous Class IV action, with big holes, sometimes 3/4 the width of the stream, and complex pourover-mixmaster combos which made us shift from 'let's find a feature' mode to something more timid--'maybe I can afford to catch the edge of this hole, curl the edge of that drop.' I have just bought an Ultraclean-- However, in this water, the decks are constantly awash, and the ends rarely out of water. I found myself slicing through the far side of holes going downstream, being frequently held in suspension over drops, buried in bubbles up to my navel, and having to paddle briskly leaning foreward to avoid being backendered more than I already was. Ryan found the run at this level a memorable experience, and it was a kick to see him disappear over standing waves, ledge drops, and to see him struggle through the 10-yd foam piles in the narrow places. One curl thrust me about 5 ft to the right in one shot.

Note: You can avoid the two toughest sections of this river (Surprise and Gilsum gorge)and cut the trip down to 3.5 miles. Put in about 1/2 downstream of Surprise rapid, (you will also avoid some flatwater here). Take out well above the gorge at an old lumber yard on river left. Gilsum gorge is considered class V in very high water and a difficult Class IV+ in high water.

Gilsum Gorge also has a keeper hole at low flow, so all paddlers should be wary and scout this carefully before entering it.

Technical info

Put in elevation........1069'Take out elevati
...

River Features

Put In

Distance: 0 mi

Surprise

Class: IVDistance: 0.22 mi
Rapid
Surprise

Alternate Put In

Distance: 0.37 mi
Access Point

Put on here if skipping Surprise

Alternate Take Out

Distance: 4.55 mi
Access Point

Take out here to skip Gilsum Gorge

Gilsum Gorge

Class: IVDistance: 4.9 mi
Rapid
Gilsum Gorge

Take Out

Distance: 5.3 mi
Take Out

BD
Bill Durr

Dec 20, 2023


JW
Jake Weller

Apr 20, 2021


New river-wide strainer just upstream of the stone bridge (surry rd). Not an issue if you take out before the gorge, but if you're running the gorge, it'll be in the way. Easy to spot and get out/walk around at today's level( 5'). Heads up!

RD
Robert Dunn

Apr 9, 2005


The length of the rapid is condensed in this photo by a telephoto lens.

A large boulder blocks the river's path in Gilsum Gorge.