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Merrimack River

New Hampshire, United States

Merrimack River is a river in New Hampshire, United States. WikiCatch lists 10 fish species for this water, including Smallmouth bass, Largemouth bass, Fallfish. The nearest other water we map in New Hampshire is Burnham Brook, 586 m away.

Species at Merrimack River

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Nearby waters

  1. Burnham Brookstream586 m
  2. Hayward Brookstream1.1 km
  3. Contoocook Riverriver1.4 km
  4. Beaver Meadow Brookstream2.5 km
  5. Sewalls Fallswater2.8 km
  6. Cold Brookstream2.9 km
  7. Snow Pondlake3.4 km
  8. Hoit Road Marshlake4.6 km

All fishing spots in New Hampshire →

About Merrimack River

As a river in New Hampshire, United States, Merrimack River fishes best when the flow is steady and the water is clear enough to see a foot or two down. Anglers who do well at Merrimack River pay attention to small things: the angle of the current, the colour of the water, what's hatching, where the wading birds are working. Fly anglers can match local insect activity; spin anglers can run small spinners or soft plastics through the same lies.

Reference: Wikipedia

Fishing Techniques

  • For Smallmouth bass

    Focus your fishing efforts around rocky structures, ledges, and areas with current, as smallmouth bass prefer these habitats.

  • For Largemouth bass

    Vary your retrieve speed and lure presentation until you find what the bass are keying on, as their preferences can change daily based on weather and water conditions.

  • For Fallfish

    Fallfish often school, so if you catch one, work that area thoroughly; they are opportunistic feeders.

Recommended Gear

Tackle commonly used to target the species at Merrimack River.

Plan Your Trip

Before fishing Merrimack River, make sure your licence covers New Hampshire, United States and that any species-specific seasons are open. Local regulations change year to year, so check the current rules rather than going from memory.

Official New Hampshire fishing regulations →

Other Fishing Regions in United States

Website data snapshot: October 24, 2026. Spot location from OpenStreetMap and Wikipedia, species from the WikiCatch database.