Ammonoosuc, New Hampshire, US

4. Twin Mountain to Pierce bridge

Usual Difficulty	II-III (for normal flows)
Length	2.9 Miles
Avg. Gradient	41 fpm
Max Gradient	48 fpm

Gauge Information

Name	Range	Difficulty	Updated	Level
AMMONOOSUC RIVER AT BETHLEHEM JUNCTION, NH
usgs-01137500	3.10 - 6.00 ft	II-III	13h06m	1.66 ft (rc= -0.5 )

River Description

This is a nice intermediate run in the Northern White Mountains of NH. The most difficult rapid (Boat Breaker) is at the end of this run near the take out.

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.