Free Resource · Updated 2026
The Swift River in New Hampshire flows alongside the Kancamagus Highway through the White Mountain National Forest. It is a wild, scenic freestone stream with a healthy population of native brook trout and some brown trout. The easy roadside access and stunning scenery make it one of the most visited trout streams in the White Mountains.
Swift River (NH) Hatch Calendar — Quick Reference
The Swift runs crystal clear over a rocky bottom through a boulder-strewn gorge in the National Forest. Much of the river is publicly accessible along the Kancamagus Highway, with numerous pullouts and short walks to good water.
Brook trout in the Swift are wild and bright, responding well to dry flies and small nymphs. The fish are generally smaller than on larger rivers but are abundant. Light presentations and stealthy approaches are rewarded.
Spring hatches follow a mountain freestone schedule, arriving somewhat later than valley rivers due to elevation. Hendricksons and Green Drakes in May and June are the highlights. Fall BWOs and Autumn Caddis are also reliable, particularly in the upper river sections.
See the full New Hampshire Fly Hatch Chart for hatch timing across all of New Hampshire's top trout streams.
Check Conditions Near Swift River (NH)What to Fish
Ephemera guttulata
The Green Drake hatch on the Swift River is a White Mountains classic. Evening hatches bring brook trout up from holding lies. The big fly makes for exciting visual fishing.
Recommended: Green Drake #10
Ephemerella subvaria
Midday Hendrickson hatches in May are the highlight of spring on the Swift. Fish the pools and slower runs where trout gather during the emergence.
Recommended: Hendrickson #14
Baetis spp.
Spring and fall BWOs on the Swift bring brook trout to the surface on overcast days. October is particularly productive in the upper sections near the Kancamagus pass.
Recommended: BWO Parachute #18-20
Neophylax spp.
Fall caddis hatches are a reliable end-of-season option on the Swift River. Brook trout feed aggressively before winter on these larger insects.
Recommended: Elk Hair Caddis #14
Common Questions
Yes, most of the Swift River along the Kancamagus Highway runs through White Mountain National Forest. Access is excellent with many pullouts and day use areas along Route 112.
Yes, a New Hampshire fishing license is required. The river is within the National Forest but state fishing regulations apply. Check for any special regulations on specific sections.
The NH Swift is a wild mountain freestone stream with native brook trout and no dams. The MA Swift is a cold tailwater below Quabbin Reservoir known for selective wild browns and technical dry fly fishing.
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